vendor: update all dependencies except Azure SDK

The Azure SDK doesn't support Go 1.5 anymore. We can't upgrade it until
Go 1.8 comes out.

54 files changed, 2170 insertions, 127 deletions

diff --git a/vendor/github.com/aristanetworks/goarista/.travis.yml b/vendor/github.com/aristanetworks/goarista/.travis.yml
index 534f444ca..1f34efa6b 100644
--- a/vendor/github.com/aristanetworks/goarista/.travis.yml
+++ b/vendor/github.com/aristanetworks/goarista/.travis.yml
@@ -1,6 +1,6 @@
 language: go
 go:
-- 1.6.2
+- 1.7.3
 - tip
 before_install:
 - go get -v github.com/golang/lint/golint
@@ -13,3 +13,4 @@ script:
 notifications:
   slack:
     secure: 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
+    on_success: change
diff --git a/vendor/github.com/aristanetworks/goarista/Dockerfile b/vendor/github.com/aristanetworks/goarista/Dockerfile
index e8a0f4179..0322e564e 100644
--- a/vendor/github.com/aristanetworks/goarista/Dockerfile
+++ b/vendor/github.com/aristanetworks/goarista/Dockerfile
@@ -3,7 +3,7 @@
 # that can be found in the COPYING file.
 
 # TODO: move this to cmd/ockafka (https://github.com/docker/hub-feedback/issues/292)
-FROM golang:1.6
+FROM golang:1.7.3
 
 RUN mkdir -p /go/src/github.com/aristanetworks/goarista/cmd
 WORKDIR /go/src/github.com/aristanetworks/goarista
diff --git a/vendor/github.com/fatih/color/README.md b/vendor/github.com/fatih/color/README.md
index 6e39e919f..7c8eea20e 100644
--- a/vendor/github.com/fatih/color/README.md
+++ b/vendor/github.com/fatih/color/README.md
@@ -56,6 +56,16 @@ whiteBackground := red.Add(color.BgWhite)
 whiteBackground.Println("Red text with white background.")
 ```
 
+### Use your own output (io.Writer)
+
+```go
+// Use your own io.Writer output
+color.New(color.FgBlue).Fprintln(myWriter, "blue color!")
+
+blue := color.New(color.FgBlue)
+blue.Fprint(writer, "This will print text in blue.")
+```
+
 ### Custom print functions (PrintFunc)
 
 ```go
@@ -69,6 +79,17 @@ notice := color.New(color.Bold, color.FgGreen).PrintlnFunc()
 notice("Don't forget this...")
 ```
 
+### Custom fprint functions (FprintFunc)
+
+```go
+blue := color.New(FgBlue).FprintfFunc()
+blue(myWriter, "important notice: %s", stars)
+
+// Mix up with multiple attributes
+success := color.New(color.Bold, color.FgGreen).FprintlnFunc()
+success(myWriter, don't forget this...")
+```
+
 ### Insert into noncolor strings (SprintFunc)
 
 ```go
diff --git a/vendor/github.com/fatih/color/color.go b/vendor/github.com/fatih/color/color.go
index 06f4867f7..dba8f211e 100644
--- a/vendor/github.com/fatih/color/color.go
+++ b/vendor/github.com/fatih/color/color.go
@@ -2,6 +2,7 @@ package color
 
 import (
 	"fmt"
+	"io"
 	"os"
 	"strconv"
 	"strings"
@@ -11,11 +12,22 @@ import (
 	"github.com/mattn/go-isatty"
 )
 
-// NoColor defines if the output is colorized or not. It's dynamically set to
-// false or true based on the stdout's file descriptor referring to a terminal
-// or not. This is a global option and affects all colors. For more control
-// over each color block use the methods DisableColor() individually.
-var NoColor = !isatty.IsTerminal(os.Stdout.Fd())
+var (
+	// NoColor defines if the output is colorized or not. It's dynamically set to
+	// false or true based on the stdout's file descriptor referring to a terminal
+	// or not. This is a global option and affects all colors. For more control
+	// over each color block use the methods DisableColor() individually.
+	NoColor = !isatty.IsTerminal(os.Stdout.Fd()) || os.Getenv("TERM") == "dumb"
+
+	// Output defines the standard output of the print functions. By default
+	// os.Stdout is used.
+	Output = colorable.NewColorableStdout()
+
+	// colorsCache is used to reduce the count of created Color objects and
+	// allows to reuse already created objects with required Attribute.
+	colorsCache   = make(map[Attribute]*Color)
+	colorsCacheMu sync.Mutex // protects colorsCache
+)
 
 // Color defines a custom color object which is defined by SGR parameters.
 type Color struct {
@@ -133,6 +145,27 @@ func (c *Color) unset() {
 	Unset()
 }
 
+func (c *Color) setWriter(w io.Writer) *Color {
+	if c.isNoColorSet() {
+		return c
+	}
+
+	fmt.Fprintf(w, c.format())
+	return c
+}
+
+func (c *Color) unsetWriter(w io.Writer) {
+	if c.isNoColorSet() {
+		return
+	}
+
+	if NoColor {
+		return
+	}
+
+	fmt.Fprintf(w, "%s[%dm", escape, Reset)
+}
+
 // Add is used to chain SGR parameters. Use as many as parameters to combine
 // and create custom color objects. Example: Add(color.FgRed, color.Underline).
 func (c *Color) Add(value ...Attribute) *Color {
@@ -146,9 +179,17 @@ func (c *Color) prepend(value Attribute) {
 	c.params[0] = value
 }
 
-// Output defines the standard output of the print functions. By default
-// os.Stdout is used.
-var Output = colorable.NewColorableStdout()
+// Fprint formats using the default formats for its operands and writes to w.
+// Spaces are added between operands when neither is a string.
+// It returns the number of bytes written and any write error encountered.
+// On Windows, users should wrap w with colorable.NewColorable() if w is of
+// type *os.File.
+func (c *Color) Fprint(w io.Writer, a ...interface{}) (n int, err error) {
+	c.setWriter(w)
+	defer c.unsetWriter(w)
+
+	return fmt.Fprint(w, a...)
+}
 
 // Print formats using the default formats for its operands and writes to
 // standard output. Spaces are added between operands when neither is a
@@ -162,6 +203,17 @@ func (c *Color) Print(a ...interface{}) (n int, err error) {
 	return fmt.Fprint(Output, a...)
 }
 
+// Fprintf formats according to a format specifier and writes to w.
+// It returns the number of bytes written and any write error encountered.
+// On Windows, users should wrap w with colorable.NewColorable() if w is of
+// type *os.File.
+func (c *Color) Fprintf(w io.Writer, format string, a ...interface{}) (n int, err error) {
+	c.setWriter(w)
+	defer c.unsetWriter(w)
+
+	return fmt.Fprintf(w, format, a...)
+}
+
 // Printf formats according to a format specifier and writes to standard output.
 // It returns the number of bytes written and any write error encountered.
 // This is the standard fmt.Printf() method wrapped with the given color.
@@ -172,6 +224,17 @@ func (c *Color) Printf(format string, a ...interface{}) (n int, err error) {
 	return fmt.Fprintf(Output, format, a...)
 }
 
+// Fprintln formats using the default formats for its operands and writes to w.
+// Spaces are always added between operands and a newline is appended.
+// On Windows, users should wrap w with colorable.NewColorable() if w is of
+// type *os.File.
+func (c *Color) Fprintln(w io.Writer, a ...interface{}) (n int, err error) {
+	c.setWriter(w)
+	defer c.unsetWriter(w)
+
+	return fmt.Fprintln(w, a...)
+}
+
 // Println formats using the default formats for its operands and writes to
 // standard output. Spaces are always added between operands and a newline is
 // appended. It returns the number of bytes written and any write error
@@ -184,27 +247,57 @@ func (c *Color) Println(a ...interface{}) (n int, err error) {
 	return fmt.Fprintln(Output, a...)
 }
 
+// FprintFunc returns a new function that prints the passed arguments as
+// colorized with color.Fprint().
+func (c *Color) FprintFunc() func(w io.Writer, a ...interface{}) {
+	return func(w io.Writer, a ...interface{}) {
+		c.Fprint(w, a...)
+	}
+}
+
 // PrintFunc returns a new function that prints the passed arguments as
 // colorized with color.Print().
 func (c *Color) PrintFunc() func(a ...interface{}) {
-	return func(a ...interface{}) { c.Print(a...) }
+	return func(a ...interface{}) {
+		c.Print(a...)
+	}
+}
+
+// FprintfFunc returns a new function that prints the passed arguments as
+// colorized with color.Fprintf().
+func (c *Color) FprintfFunc() func(w io.Writer, format string, a ...interface{}) {
+	return func(w io.Writer, format string, a ...interface{}) {
+		c.Fprintf(w, format, a...)
+	}
 }
 
 // PrintfFunc returns a new function that prints the passed arguments as
 // colorized with color.Printf().
 func (c *Color) PrintfFunc() func(format string, a ...interface{}) {
-	return func(format string, a ...interface{}) { c.Printf(format, a...) }
+	return func(format string, a ...interface{}) {
+		c.Printf(format, a...)
+	}
+}
+
+// FprintlnFunc returns a new function that prints the passed arguments as
+// colorized with color.Fprintln().
+func (c *Color) FprintlnFunc() func(w io.Writer, a ...interface{}) {
+	return func(w io.Writer, a ...interface{}) {
+		c.Fprintln(w, a...)
+	}
 }
 
 // PrintlnFunc returns a new function that prints the passed arguments as
 // colorized with color.Println().
 func (c *Color) PrintlnFunc() func(a ...interface{}) {
-	return func(a ...interface{}) { c.Println(a...) }
+	return func(a ...interface{}) {
+		c.Println(a...)
+	}
 }
 
 // SprintFunc returns a new function that returns colorized strings for the
 // given arguments with fmt.Sprint(). Useful to put into or mix into other
-// string. Windows users should use this in conjuction with color.Output, example:
+// string. Windows users should use this in conjunction with color.Output, example:
 //
 //	put := New(FgYellow).SprintFunc()
 //	fmt.Fprintf(color.Output, "This is a %s", put("warning"))
@@ -216,7 +309,7 @@ func (c *Color) SprintFunc() func(a ...interface{}) string {
 
 // SprintfFunc returns a new function that returns colorized strings for the
 // given arguments with fmt.Sprintf(). Useful to put into or mix into other
-// string. Windows users should use this in conjuction with color.Output.
+// string. Windows users should use this in conjunction with color.Output.
 func (c *Color) SprintfFunc() func(format string, a ...interface{}) string {
 	return func(format string, a ...interface{}) string {
 		return c.wrap(fmt.Sprintf(format, a...))
@@ -225,7 +318,7 @@ func (c *Color) SprintfFunc() func(format string, a ...interface{}) string {
 
 // SprintlnFunc returns a new function that returns colorized strings for the
 // given arguments with fmt.Sprintln(). Useful to put into or mix into other
-// string. Windows users should use this in conjuction with color.Output.
+// string. Windows users should use this in conjunction with color.Output.
 func (c *Color) SprintlnFunc() func(a ...interface{}) string {
 	return func(a ...interface{}) string {
 		return c.wrap(fmt.Sprintln(a...))
@@ -268,7 +361,7 @@ func (c *Color) DisableColor() {
 	c.noColor = boolPtr(true)
 }
 
-// EnableColor enables the color output. Use it in conjuction with
+// EnableColor enables the color output. Use it in conjunction with
 // DisableColor(). Otherwise this method has no side effects.
 func (c *Color) EnableColor() {
 	c.noColor = boolPtr(false)
@@ -313,12 +406,6 @@ func boolPtr(v bool) *bool {
 	return &v
 }
 
-// colorsCache is used to reduce the count of created Color objects and
-// allows to reuse already created objects with required Attribute.
-var colorsCache = make(map[Attribute]*Color)
-
-var colorsCacheMu = new(sync.Mutex) // protects colorsCache
-
 func getCachedColor(p Attribute) *Color {
 	colorsCacheMu.Lock()
 	defer colorsCacheMu.Unlock()
diff --git a/vendor/github.com/fatih/color/doc.go b/vendor/github.com/fatih/color/doc.go
index 17908787c..1e57812d7 100644
--- a/vendor/github.com/fatih/color/doc.go
+++ b/vendor/github.com/fatih/color/doc.go
@@ -37,6 +37,11 @@ separate color object.
     whiteBackground := red.Add(color.BgWhite)
     whiteBackground.Println("Red text with White background.")
 
+    // Use your own io.Writer output
+    color.New(color.FgBlue).Fprintln(myWriter, "blue color!")
+
+    blue := color.New(color.FgBlue)
+    blue.Fprint(myWriter, "This will print text in blue.")
 
 You can create PrintXxx functions to simplify even more:
 
@@ -49,6 +54,15 @@ You can create PrintXxx functions to simplify even more:
     notice := color.New(color.Bold, color.FgGreen).PrintlnFunc()
     notice("don't forget this...")
 
+You can also FprintXxx functions to pass your own io.Writer:
+
+    blue := color.New(FgBlue).FprintfFunc()
+    blue(myWriter, "important notice: %s", stars)
+
+    // Mix up with multiple attributes
+    success := color.New(color.Bold, color.FgGreen).FprintlnFunc()
+    success(myWriter, don't forget this...")
+
 
 Or create SprintXxx functions to mix strings with other non-colorized strings:
 
diff --git a/vendor/github.com/gizak/termui/barchart.go b/vendor/github.com/gizak/termui/barchart.go
index 9e2a10689..1102f3416 100644
--- a/vendor/github.com/gizak/termui/barchart.go
+++ b/vendor/github.com/gizak/termui/barchart.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/block.go b/vendor/github.com/gizak/termui/block.go
index 418738c8d..43a4c4039 100644
--- a/vendor/github.com/gizak/termui/block.go
+++ b/vendor/github.com/gizak/termui/block.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/block_common.go b/vendor/github.com/gizak/termui/block_common.go
index 0f972cbbd..aa4a92a7d 100644
--- a/vendor/github.com/gizak/termui/block_common.go
+++ b/vendor/github.com/gizak/termui/block_common.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/block_windows.go b/vendor/github.com/gizak/termui/block_windows.go
index 4dbc017de..50480e55b 100644
--- a/vendor/github.com/gizak/termui/block_windows.go
+++ b/vendor/github.com/gizak/termui/block_windows.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/buffer.go b/vendor/github.com/gizak/termui/buffer.go
index 60e77863a..cbbab6f50 100644
--- a/vendor/github.com/gizak/termui/buffer.go
+++ b/vendor/github.com/gizak/termui/buffer.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
@@ -46,7 +46,7 @@ func (b Buffer) Bounds() image.Rectangle {
 			y0 = p.Y
 		}
 	}
-	return image.Rect(x0, y0, x1, y1)
+	return image.Rect(x0, y0, x1+1, y1+1)
 }
 
 // SetArea assigns a new rect area to Buffer b.
@@ -56,7 +56,7 @@ func (b *Buffer) SetArea(r image.Rectangle) {
 }
 
 // Sync sets drawing area to the buffer's bound
-func (b Buffer) Sync() {
+func (b *Buffer) Sync() {
 	b.SetArea(b.Bounds())
 }
 
diff --git a/vendor/github.com/gizak/termui/canvas.go b/vendor/github.com/gizak/termui/canvas.go
index 4173780f3..911a6787f 100644
--- a/vendor/github.com/gizak/termui/canvas.go
+++ b/vendor/github.com/gizak/termui/canvas.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/config b/vendor/github.com/gizak/termui/config
deleted file mode 100755
index 18fd6a401..000000000
--- a/vendor/github.com/gizak/termui/config
+++ /dev/null
@@ -1,26 +0,0 @@
-#!/usr/bin/env perl6
-
-use v6;
-
-my $copyright = '// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
-// Use of this source code is governed by a MIT license that can
-// be found in the LICENSE file.
-
-';
-
-sub MAIN('update-docstr', Str $srcp) {
-    if $srcp.IO.f {
-        $_ = $srcp.IO.slurp;
-        if m/^ \/\/\s Copyright .+? \n\n/ {
-            unless ~$/ eq $copyright {
-                s/^ \/\/\s Copyright .+? \n\n /$copyright/;
-                spurt $srcp, $_;
-                say "[updated] doc string for:"~$srcp;
-            }
-        } else {
-            say "[added] doc string for "~$srcp~" (no match found)";
-            $_ = $copyright ~ $_;
-            spurt $srcp, $_;
-        }
-    }
-}
diff --git a/vendor/github.com/gizak/termui/config.py b/vendor/github.com/gizak/termui/config.py
new file mode 100644
index 000000000..9152bf517
--- /dev/null
+++ b/vendor/github.com/gizak/termui/config.py
@@ -0,0 +1,79 @@
+#!/usr/bin/env python3
+
+# use v6;
+#
+# my $copyright = '// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+# // Use of this source code is governed by a MIT license that can
+# // be found in the LICENSE file.
+#
+# ';
+#
+# sub MAIN('update-docstr', Str $srcp) {
+#     if $srcp.IO.f {
+#         $_ = $srcp.IO.slurp;
+#         if m/^ \/\/\s Copyright .+? \n\n/ {
+#             unless ~$/ eq $copyright {
+#                 s/^ \/\/\s Copyright .+? \n\n /$copyright/;
+#                 spurt $srcp, $_;
+#                 say "[updated] doc string for:"~$srcp;
+#             }
+#         } else {
+#             say "[added] doc string for "~$srcp~" (no match found)";
+#             $_ = $copyright ~ $_;
+#             spurt $srcp, $_;
+#         }
+#     }
+# }
+
+import re
+import os
+import io
+
+copyright = """// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
+// Use of this source code is governed by a MIT license that can
+// be found in the LICENSE file.
+
+"""
+
+exclude_dirs = [".git", "_docs"]
+exclude_files = []
+include_dirs = [".", "debug", "extra", "test", "_example"]
+
+
+def is_target(fpath):
+    if os.path.splitext(fpath)[-1] == ".go":
+        return True
+    return False
+
+
+def update_copyright(fpath):
+    print("processing " + fpath)
+    f = io.open(fpath, 'r', encoding='utf-8')
+    fstr = f.read()
+    f.close()
+
+    # remove old
+    m = re.search('^// Copyright .+?\r?\n\r?\n', fstr, re.MULTILINE|re.DOTALL)
+    if m:
+        fstr = fstr[m.end():]
+
+    # add new
+    fstr = copyright + fstr
+    f = io.open(fpath, 'w',encoding='utf-8')
+    f.write(fstr)
+    f.close()
+
+
+def main():
+    for d in include_dirs:
+        files = [
+            os.path.join(d, f) for f in os.listdir(d)
+            if os.path.isfile(os.path.join(d, f))
+        ]
+        for f in files:
+            if is_target(f):
+                update_copyright(f)
+
+
+if __name__ == '__main__':
+    main()
diff --git a/vendor/github.com/gizak/termui/doc.go b/vendor/github.com/gizak/termui/doc.go
index 0d7108d30..fdf7dd079 100644
--- a/vendor/github.com/gizak/termui/doc.go
+++ b/vendor/github.com/gizak/termui/doc.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/events.go b/vendor/github.com/gizak/termui/events.go
index 6627f8942..5ba5263c0 100644
--- a/vendor/github.com/gizak/termui/events.go
+++ b/vendor/github.com/gizak/termui/events.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/gauge.go b/vendor/github.com/gizak/termui/gauge.go
index 01af0ea7c..a143111ea 100644
--- a/vendor/github.com/gizak/termui/gauge.go
+++ b/vendor/github.com/gizak/termui/gauge.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/glide.lock b/vendor/github.com/gizak/termui/glide.lock
index 798e944d3..be5952d46 100644
--- a/vendor/github.com/gizak/termui/glide.lock
+++ b/vendor/github.com/gizak/termui/glide.lock
@@ -1,14 +1,30 @@
-hash: 67a478802ee1d122cf1df063c52458d074864900c96a5cc25dc6be4b7638eb1c
-updated: 2016-04-06T21:16:00.849048757-04:00
+hash: 7a754ba100256404a978b2fc8738aee337beb822458e4b6060399fb89ebd215c
+updated: 2016-11-03T17:39:24.323773674-04:00
 imports:
+- name: github.com/maruel/panicparse
+  version: ad661195ed0e88491e0f14be6613304e3b1141d6
+  subpackages:
+  - stack
 - name: github.com/mattn/go-runewidth
-  version: d6bea18f789704b5f83375793155289da36a3c7f
+  version: 737072b4e32b7a5018b4a7125da8d12de90e8045
 - name: github.com/mitchellh/go-wordwrap
   version: ad45545899c7b13c020ea92b2072220eefad42b8
 - name: github.com/nsf/termbox-go
-  version: 362329b0aa6447eadd52edd8d660ec1dff470295
+  version: b6acae516ace002cb8105a89024544a1480655a5
 - name: golang.org/x/net
-  version: af4fee9d05b66edc24197d189e6118f8ebce8c2b
+  version: 569280fa63be4e201b975e5411e30a92178f0118
   subpackages:
   - websocket
-devImports: []
+testImports:
+- name: github.com/davecgh/go-spew
+  version: 346938d642f2ec3594ed81d874461961cd0faa76
+  subpackages:
+  - spew
+- name: github.com/pmezard/go-difflib
+  version: d8ed2627bdf02c080bf22230dbb337003b7aba2d
+  subpackages:
+  - difflib
+- name: github.com/stretchr/testify
+  version: 976c720a22c8eb4eb6a0b4348ad85ad12491a506
+  subpackages:
+  - assert
diff --git a/vendor/github.com/gizak/termui/glide.yaml b/vendor/github.com/gizak/termui/glide.yaml
index d8e445254..a6812317f 100644
--- a/vendor/github.com/gizak/termui/glide.yaml
+++ b/vendor/github.com/gizak/termui/glide.yaml
@@ -6,3 +6,4 @@ import:
 - package: golang.org/x/net
   subpackages:
   - websocket
+- package: github.com/maruel/panicparse
diff --git a/vendor/github.com/gizak/termui/grid.go b/vendor/github.com/gizak/termui/grid.go
index 364442e02..679b825b7 100644
--- a/vendor/github.com/gizak/termui/grid.go
+++ b/vendor/github.com/gizak/termui/grid.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/helper.go b/vendor/github.com/gizak/termui/helper.go
index 308f6c1db..5870bac94 100644
--- a/vendor/github.com/gizak/termui/helper.go
+++ b/vendor/github.com/gizak/termui/helper.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/linechart.go b/vendor/github.com/gizak/termui/linechart.go
index 81834efdb..188611496 100644
--- a/vendor/github.com/gizak/termui/linechart.go
+++ b/vendor/github.com/gizak/termui/linechart.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/linechart_others.go b/vendor/github.com/gizak/termui/linechart_others.go
index 7e2e66b3e..fad7a80b1 100644
--- a/vendor/github.com/gizak/termui/linechart_others.go
+++ b/vendor/github.com/gizak/termui/linechart_others.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/linechart_windows.go b/vendor/github.com/gizak/termui/linechart_windows.go
index 1478b5ce3..9c9917ba8 100644
--- a/vendor/github.com/gizak/termui/linechart_windows.go
+++ b/vendor/github.com/gizak/termui/linechart_windows.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/list.go b/vendor/github.com/gizak/termui/list.go
index 0029d2622..492b62d54 100644
--- a/vendor/github.com/gizak/termui/list.go
+++ b/vendor/github.com/gizak/termui/list.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/mbarchart.go b/vendor/github.com/gizak/termui/mbarchart.go
index 6828e6533..fa6d54ca1 100644
--- a/vendor/github.com/gizak/termui/mbarchart.go
+++ b/vendor/github.com/gizak/termui/mbarchart.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/par.go b/vendor/github.com/gizak/termui/par.go
index 78bffd091..14d6b4d34 100644
--- a/vendor/github.com/gizak/termui/par.go
+++ b/vendor/github.com/gizak/termui/par.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/pos.go b/vendor/github.com/gizak/termui/pos.go
index 2046dce5a..a0359af7c 100644
--- a/vendor/github.com/gizak/termui/pos.go
+++ b/vendor/github.com/gizak/termui/pos.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/render.go b/vendor/github.com/gizak/termui/render.go
index 36544f063..be3bf464e 100644
--- a/vendor/github.com/gizak/termui/render.go
+++ b/vendor/github.com/gizak/termui/render.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
@@ -6,9 +6,19 @@ package termui
 
 import (
 	"image"
+	"io"
 	"sync"
 	"time"
 
+	"fmt"
+
+	"os"
+
+	"runtime/debug"
+
+	"bytes"
+
+	"github.com/maruel/panicparse/stack"
 	tm "github.com/nsf/termbox-go"
 )
 
@@ -89,7 +99,26 @@ func TermHeight() int {
 // Render renders all Bufferer in the given order from left to right,
 // right could overlap on left ones.
 func render(bs ...Bufferer) {
-
+	defer func() {
+		if e := recover(); e != nil {
+			Close()
+			fmt.Fprintf(os.Stderr, "Captured a panic(value=%v) when rendering Bufferer. Exit termui and clean terminal...\nPrint stack trace:\n\n", e)
+			//debug.PrintStack()
+			gs, err := stack.ParseDump(bytes.NewReader(debug.Stack()), os.Stderr)
+			if err != nil {
+				debug.PrintStack()
+				os.Exit(1)
+			}
+			p := &stack.Palette{}
+			buckets := stack.SortBuckets(stack.Bucketize(gs, stack.AnyValue))
+			srcLen, pkgLen := stack.CalcLengths(buckets, false)
+			for _, bucket := range buckets {
+				io.WriteString(os.Stdout, p.BucketHeader(&bucket, false, len(buckets) > 1))
+				io.WriteString(os.Stdout, p.StackLines(&bucket.Signature, srcLen, pkgLen, false))
+			}
+			os.Exit(1)
+		}
+	}()
 	for _, b := range bs {
 
 		buf := b.Buffer()
diff --git a/vendor/github.com/gizak/termui/sparkline.go b/vendor/github.com/gizak/termui/sparkline.go
index 312ad9563..e127b52e1 100644
--- a/vendor/github.com/gizak/termui/sparkline.go
+++ b/vendor/github.com/gizak/termui/sparkline.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/table.go b/vendor/github.com/gizak/termui/table.go
new file mode 100644
index 000000000..319b89701
--- /dev/null
+++ b/vendor/github.com/gizak/termui/table.go
@@ -0,0 +1,170 @@
+package termui
+
+import "strings"
+
+/*
+	table := termui.NewTable()
+	table.Rows = rows
+	table.FgColor = termui.ColorWhite
+	table.BgColor = termui.ColorDefault
+	table.Height = 7
+	table.Width = 62
+	table.Y = 0
+	table.X = 0
+	table.Border = true
+*/
+
+type Table struct {
+	Block
+	Rows      [][]string
+	CellWidth []int
+	FgColor   Attribute
+	BgColor   Attribute
+	FgColors  []Attribute
+	BgColors  []Attribute
+	Seperator bool
+	TextAlign Align
+}
+
+func NewTable() *Table {
+	table := &Table{Block: *NewBlock()}
+	table.FgColor = ColorWhite
+	table.BgColor = ColorDefault
+	table.Seperator = true
+	return table
+}
+
+func (table *Table) Analysis() {
+	length := len(table.Rows)
+	if length < 1 {
+		return
+	}
+
+	if len(table.FgColors) == 0 {
+		table.FgColors = make([]Attribute, len(table.Rows))
+	}
+	if len(table.BgColors) == 0 {
+		table.BgColors = make([]Attribute, len(table.Rows))
+	}
+
+	row_width := len(table.Rows[0])
+	cellWidthes := make([]int, row_width)
+
+	for index, row := range table.Rows {
+		for i, str := range row {
+			if cellWidthes[i] < len(str) {
+				cellWidthes[i] = len(str)
+			}
+		}
+
+		if table.FgColors[index] == 0 {
+			table.FgColors[index] = table.FgColor
+		}
+
+		if table.BgColors[index] == 0 {
+			table.BgColors[index] = table.BgColor
+		}
+	}
+
+	table.CellWidth = cellWidthes
+
+	//width_sum := 2
+	//for i, width := range cellWidthes {
+	//	width_sum += (width + 2)
+	//	for u, row := range table.Rows {
+	//		switch table.TextAlign {
+	//		case "right":
+	//			row[i] = fmt.Sprintf(" %*s ", width, table.Rows[u][i])
+	//		case "center":
+	//			word_width := len(table.Rows[u][i])
+	//			offset := (width - word_width) / 2
+	//			row[i] = fmt.Sprintf(" %*s ", width, fmt.Sprintf("%-*s", offset+word_width, table.Rows[u][i]))
+	//		default: // left
+	//			row[i] = fmt.Sprintf(" %-*s ", width, table.Rows[u][i])
+	//		}
+	//	}
+	//}
+
+	//if table.Width == 0 {
+	//	table.Width = width_sum
+	//}
+}
+
+func (table *Table) SetSize() {
+	length := len(table.Rows)
+	if table.Seperator {
+		table.Height = length*2 + 1
+	} else {
+		table.Height = length + 2
+	}
+	table.Width = 2
+	if length != 0 {
+		for _, cell_width := range table.CellWidth {
+			table.Width += cell_width + 3
+		}
+	}
+}
+
+func (table *Table) CalculatePosition(x int, y int, x_coordinate *int, y_coordibate *int, cell_beginning *int) {
+	if table.Seperator {
+		*y_coordibate = table.innerArea.Min.Y + y*2
+	} else {
+		*y_coordibate = table.innerArea.Min.Y + y
+	}
+	if x == 0 {
+		*cell_beginning = table.innerArea.Min.X
+	} else {
+		*cell_beginning += table.CellWidth[x-1] + 3
+	}
+
+	switch table.TextAlign {
+	case AlignRight:
+		*x_coordinate = *cell_beginning + (table.CellWidth[x] - len(table.Rows[y][x])) + 2
+	case AlignCenter:
+		*x_coordinate = *cell_beginning + (table.CellWidth[x]-len(table.Rows[y][x]))/2 + 2
+	default:
+		*x_coordinate = *cell_beginning + 2
+	}
+}
+
+func (table *Table) Buffer() Buffer {
+	buffer := table.Block.Buffer()
+	table.Analysis()
+
+	pointer_x := table.innerArea.Min.X + 2
+	pointer_y := table.innerArea.Min.Y
+	border_pointer_x := table.innerArea.Min.X
+	for y, row := range table.Rows {
+		for x, cell := range row {
+			table.CalculatePosition(x, y, &pointer_x, &pointer_y, &border_pointer_x)
+			backgraound := DefaultTxBuilder.Build(strings.Repeat(" ", table.CellWidth[x]+3), table.BgColors[y], table.BgColors[y])
+			cells := DefaultTxBuilder.Build(cell, table.FgColors[y], table.BgColors[y])
+
+			for i, back := range backgraound {
+				buffer.Set(border_pointer_x+i, pointer_y, back)
+			}
+
+			coordinate_x := pointer_x
+			for _, printer := range cells {
+				buffer.Set(coordinate_x, pointer_y, printer)
+				coordinate_x += printer.Width()
+			}
+
+			if x != 0 {
+				devidors := DefaultTxBuilder.Build("|", table.FgColors[y], table.BgColors[y])
+				for _, devidor := range devidors {
+					buffer.Set(border_pointer_x, pointer_y, devidor)
+				}
+			}
+		}
+
+		if table.Seperator {
+			border := DefaultTxBuilder.Build(strings.Repeat("─", table.Width-2), table.FgColor, table.BgColor)
+			for i, cell := range border {
+				buffer.Set(i+1, pointer_y+1, cell)
+			}
+		}
+	}
+
+	return buffer
+}
diff --git a/vendor/github.com/gizak/termui/textbuilder.go b/vendor/github.com/gizak/termui/textbuilder.go
index 06a019bed..818a40022 100644
--- a/vendor/github.com/gizak/termui/textbuilder.go
+++ b/vendor/github.com/gizak/termui/textbuilder.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/theme.go b/vendor/github.com/gizak/termui/theme.go
index c3ccda559..9632ae791 100644
--- a/vendor/github.com/gizak/termui/theme.go
+++ b/vendor/github.com/gizak/termui/theme.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/gizak/termui/widget.go b/vendor/github.com/gizak/termui/widget.go
index 35cf143a3..f14aa8602 100644
--- a/vendor/github.com/gizak/termui/widget.go
+++ b/vendor/github.com/gizak/termui/widget.go
@@ -1,4 +1,4 @@
-// Copyright 2016 Zack Guo <gizak@icloud.com>. All rights reserved.
+// Copyright 2016 Zack Guo <zack.y.guo@gmail.com>. All rights reserved.
 // Use of this source code is governed by a MIT license that can
 // be found in the LICENSE file.
 
diff --git a/vendor/github.com/huin/goupnp/README.md b/vendor/github.com/huin/goupnp/README.md
index a228ccea6..433ba5c68 100644
--- a/vendor/github.com/huin/goupnp/README.md
+++ b/vendor/github.com/huin/goupnp/README.md
@@ -8,18 +8,18 @@ Run `go get -u github.com/huin/goupnp`.
 Documentation
 -------------
 
-All doc links below are for ![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg).
-
 Supported DCPs (you probably want to start with one of these):
-* [av1](https://godoc.org/github.com/huin/goupnp/dcps/av1) - Client for UPnP Device Control Protocol MediaServer v1 and MediaRenderer v1.
-* [internetgateway1](https://godoc.org/github.com/huin/goupnp/dcps/internetgateway1) - Client for UPnP Device Control Protocol Internet Gateway Device v1.
-* [internetgateway2](https://godoc.org/github.com/huin/goupnp/dcps/internetgateway2) - Client for UPnP Device Control Protocol Internet Gateway Device v2.
+
+* [![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg) av1](https://godoc.org/github.com/huin/goupnp/dcps/av1) - Client for UPnP Device Control Protocol MediaServer v1 and MediaRenderer v1.
+* [![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg) internetgateway1](https://godoc.org/github.com/huin/goupnp/dcps/internetgateway1) - Client for UPnP Device Control Protocol Internet Gateway Device v1.
+* [![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg) internetgateway2](https://godoc.org/github.com/huin/goupnp/dcps/internetgateway2) - Client for UPnP Device Control Protocol Internet Gateway Device v2.
 
 Core components:
-* [(goupnp)](https://godoc.org/github.com/huin/goupnp) core library - contains datastructures and utilities typically used by the implemented DCPs.
-* [httpu](https://godoc.org/github.com/huin/goupnp/httpu) HTTPU implementation, underlies SSDP.
-* [ssdp](https://godoc.org/github.com/huin/goupnp/ssdp) SSDP client implementation (simple service discovery protocol) - used to discover UPnP services on a network.
-* [soap](https://godoc.org/github.com/huin/goupnp/soap) SOAP client implementation (simple object access protocol) - used to communicate with discovered services.
+
+* [![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg) (goupnp)](https://godoc.org/github.com/huin/goupnp) core library - contains datastructures and utilities typically used by the implemented DCPs.
+* [![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg) httpu](https://godoc.org/github.com/huin/goupnp/httpu) HTTPU implementation, underlies SSDP.
+* [![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg) ssdp](https://godoc.org/github.com/huin/goupnp/ssdp) SSDP client implementation (simple service discovery protocol) - used to discover UPnP services on a network.
+* [![GoDoc](https://godoc.org/github.com/huin/goupnp?status.svg) soap](https://godoc.org/github.com/huin/goupnp/soap) SOAP client implementation (simple object access protocol) - used to communicate with discovered services.
 
 
 Regenerating dcps generated source code:
diff --git a/vendor/github.com/maruel/panicparse/.travis.yml b/vendor/github.com/maruel/panicparse/.travis.yml
new file mode 100644
index 000000000..c6da8f0b8
--- /dev/null
+++ b/vendor/github.com/maruel/panicparse/.travis.yml
@@ -0,0 +1,15 @@
+# Copyright 2014 Marc-Antoine Ruel. All rights reserved.
+# Use of this source code is governed under the Apache License, Version 2.0
+# that can be found in the LICENSE file.
+
+sudo: false
+language: go
+
+go:
+- tip
+
+before_install:
+  - go get github.com/maruel/pre-commit-go/cmd/pcg
+
+script:
+  - pcg
diff --git a/vendor/github.com/maruel/panicparse/LICENSE b/vendor/github.com/maruel/panicparse/LICENSE
new file mode 100644
index 000000000..b76840c25
--- /dev/null
+++ b/vendor/github.com/maruel/panicparse/LICENSE
@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
+      the copyright owner. For the purposes of this definition, "submitted"
+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
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+      designated in writing by the copyright owner as "Not a Contribution."
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+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
+      publicly display, publicly perform, sublicense, and distribute the
+      Work and such Derivative Works in Source or Object form.
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+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      (except as stated in this section) patent license to make, have made,
+      use, offer to sell, sell, import, and otherwise transfer the Work,
+      where such license applies only to those patent claims licensable
+      by such Contributor that are necessarily infringed by their
+      Contribution(s) alone or by combination of their Contribution(s)
+      with the Work to which such Contribution(s) was submitted. If You
+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
+      modifications, and in Source or Object form, provided that You
+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
+          stating that You changed the files; and
+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
+          attribution notices from the Source form of the Work,
+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
+          within such NOTICE file, excluding those notices that do not
+          pertain to any part of the Derivative Works, in at least one
+          of the following places: within a NOTICE text file distributed
+          as part of the Derivative Works; within the Source form or
+          documentation, if provided along with the Derivative Works; or,
+          within a display generated by the Derivative Works, if and
+          wherever such third-party notices normally appear. The contents
+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
+      implied, including, without limitation, any warranties or conditions
+      of TITLE, NON-INFRINGEMENT, MERCHANTABILITY, or FITNESS FOR A
+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "{}"
+      replaced with your own identifying information. (Don't include
+      the brackets!)  The text should be enclosed in the appropriate
+      comment syntax for the file format. We also recommend that a
+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright 2015 Marc-Antoine Ruel
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
diff --git a/vendor/github.com/maruel/panicparse/README.md b/vendor/github.com/maruel/panicparse/README.md
new file mode 100644
index 000000000..9fc039cd9
--- /dev/null
+++ b/vendor/github.com/maruel/panicparse/README.md
@@ -0,0 +1,123 @@
+panicparse
+==========
+
+Parses panic stack traces, densifies and deduplicates goroutines with similar
+stack traces. Helps debugging crashes and deadlocks in heavily parallelized
+process.
+
+[![Build Status](https://travis-ci.org/maruel/panicparse.svg?branch=master)](https://travis-ci.org/maruel/panicparse)
+
+panicparse helps make sense of Go crash dumps:
+
+![Screencast](https://raw.githubusercontent.com/wiki/maruel/panicparse/parse.gif "Screencast")
+
+
+Features
+--------
+
+   * >50% more compact output than original stack dump yet more readable.
+   * Exported symbols are bold, private symbols are darker.
+   * Stdlib is green, main is yellow, rest is red.
+   * Deduplicates redundant goroutine stacks. Useful for large server crashes.
+   * Arguments as pointer IDs instead of raw pointer values.
+   * Pushes stdlib-only stacks at the bottom to help focus on important code.
+   * Usable as a library!
+     [![GoDoc](https://godoc.org/github.com/maruel/panicparse/stack?status.svg)](https://godoc.org/github.com/maruel/panicparse/stack)
+     * Warning: please pin the version (e.g. vendor it). Breaking changes are
+       not planned but may happen.
+   * Parses the source files if available to augment the output.
+   * Works on Windows.
+
+
+Installation
+------------
+
+    go get github.com/maruel/panicparse/cmd/pp
+
+
+Usage
+-----
+
+### Piping a stack trace from another process
+
+#### TL;DR
+
+   * Ubuntu (bash v4 or zsh): `|&`
+   * OSX, [install bash 4+](README.md#updating-bash-on-osx), then: `|&`
+   * Windows _or_ OSX with stock bash v3: `2>&1 |`
+   * [Fish](http://fishshell.com/) shell: `^|`
+
+
+#### Longer version
+
+`pp` streams its stdin to stdout as long as it doesn't detect any panic.
+`panic()` and Go's native deadlock detector [print to
+stderr](https://golang.org/src/runtime/panic1.go) via the native [`print()`
+function](https://golang.org/pkg/builtin/#print).
+
+
+**Bash v4** or **zsh**: `|&` tells the shell to redirect stderr to stdout,
+it's an alias for `2>&1 |` ([bash
+v4](https://www.gnu.org/software/bash/manual/bash.html#Pipelines),
+[zsh](http://zsh.sourceforge.net/Doc/Release/Shell-Grammar.html#Simple-Commands-_0026-Pipelines)):
+
+    go test -v |&pp
+
+
+**Windows or OSX native bash** [(which is
+3.2.57)](http://meta.ath0.com/2012/02/05/apples-great-gpl-purge/): They don't
+have this shortcut, so use the long form:
+
+    go test -v 2>&1 | pp
+
+
+**Fish**: It uses [^ for stderr
+redirection](http://fishshell.com/docs/current/tutorial.html#tut_pipes_and_redirections)
+so the shortcut is `^|`:
+
+    go test -v ^|pp
+
+
+**PowerShell**: [It has broken `2>&1` redirection](https://connect.microsoft.com/PowerShell/feedback/details/765551/in-powershell-v3-you-cant-redirect-stderr-to-stdout-without-generating-error-records). The workaround is to shell out to cmd.exe. :(
+
+
+### Investigate deadlock
+
+On POSIX, use `Ctrl-\` to send SIGQUIT to your process, `pp` will ignore
+the signal and will parse the stack trace.
+
+
+### Parsing from a file
+
+To dump to a file then parse, pass the file path of a stack trace
+
+    go test 2> stack.txt
+    pp stack.txt
+
+
+Tips
+----
+
+### GOTRACEBACK
+
+Starting with Go 1.6, [`GOTRACEBACK`](https://golang.org/pkg/runtime/) defaults
+to `single` instead of `all` / `1` that was used in 1.5 and before. To get all
+goroutines trace and not just the crashing one, set the environment variable:
+
+    export GOTRACEBACK=all
+
+or `set GOTRACEBACK=all` on Windows. Probably worth to put it in your `.bashrc`.
+
+
+### Updating bash on OSX
+
+Install bash v4+ on OSX via [homebrew](http://brew.sh) or
+[macports](https://www.macports.org/). Your future self will appreciate having
+done that.
+
+
+### If you have `/usr/bin/pp` installed
+
+You may have the Perl PAR Packager installed. Use long name `panicparse` then;
+
+    go get github.com/maruel/panicparse
diff --git a/vendor/github.com/maruel/panicparse/stack/source.go b/vendor/github.com/maruel/panicparse/stack/source.go
new file mode 100644
index 000000000..f09e67336
--- /dev/null
+++ b/vendor/github.com/maruel/panicparse/stack/source.go
@@ -0,0 +1,291 @@
+// Copyright 2015 Marc-Antoine Ruel. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+// This file contains the code to process sources, to be able to deduct the
+// original types.
+
+package stack
+
+import (
+	"bytes"
+	"fmt"
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"io/ioutil"
+	"log"
+	"math"
+	"strings"
+)
+
+// cache is a cache of sources on the file system.
+type cache struct {
+	files  map[string][]byte
+	parsed map[string]*parsedFile
+}
+
+// Augment processes source files to improve calls to be more descriptive.
+//
+// It modifies goroutines in place.
+func Augment(goroutines []Goroutine) {
+	c := &cache{}
+	for i := range goroutines {
+		c.augmentGoroutine(&goroutines[i])
+	}
+}
+
+// augmentGoroutine processes source files to improve call to be more
+// descriptive.
+//
+// It modifies the routine.
+func (c *cache) augmentGoroutine(goroutine *Goroutine) {
+	if c.files == nil {
+		c.files = map[string][]byte{}
+	}
+	if c.parsed == nil {
+		c.parsed = map[string]*parsedFile{}
+	}
+	// For each call site, look at the next call and populate it. Then we can
+	// walk back and reformat things.
+	for i := range goroutine.Stack.Calls {
+		c.load(goroutine.Stack.Calls[i].SourcePath)
+	}
+
+	// Once all loaded, we can look at the next call when available.
+	for i := 1; i < len(goroutine.Stack.Calls); i++ {
+		// Get the AST from the previous call and process the call line with it.
+		if f := c.getFuncAST(&goroutine.Stack.Calls[i]); f != nil {
+			processCall(&goroutine.Stack.Calls[i], f)
+		}
+	}
+}
+
+// Private stuff.
+
+// load loads a source file and parses the AST tree. Failures are ignored.
+func (c *cache) load(fileName string) {
+	if _, ok := c.parsed[fileName]; ok {
+		return
+	}
+	c.parsed[fileName] = nil
+	if !strings.HasSuffix(fileName, ".go") {
+		// Ignore C and assembly.
+		c.files[fileName] = nil
+		return
+	}
+	log.Printf("load(%s)", fileName)
+	if _, ok := c.files[fileName]; !ok {
+		var err error
+		if c.files[fileName], err = ioutil.ReadFile(fileName); err != nil {
+			log.Printf("Failed to read %s: %s", fileName, err)
+			c.files[fileName] = nil
+			return
+		}
+	}
+	fset := token.NewFileSet()
+	src := c.files[fileName]
+	parsed, err := parser.ParseFile(fset, fileName, src, 0)
+	if err != nil {
+		log.Printf("Failed to parse %s: %s", fileName, err)
+		return
+	}
+	// Convert the line number into raw file offset.
+	offsets := []int{0, 0}
+	start := 0
+	for l := 1; start < len(src); l++ {
+		start += bytes.IndexByte(src[start:], '\n') + 1
+		offsets = append(offsets, start)
+	}
+	c.parsed[fileName] = &parsedFile{offsets, parsed}
+}
+
+func (c *cache) getFuncAST(call *Call) *ast.FuncDecl {
+	if p := c.parsed[call.SourcePath]; p != nil {
+		return p.getFuncAST(call.Func.Name(), call.Line)
+	}
+	return nil
+}
+
+type parsedFile struct {
+	lineToByteOffset []int
+	parsed           *ast.File
+}
+
+// getFuncAST gets the callee site function AST representation for the code
+// inside the function f at line l.
+func (p *parsedFile) getFuncAST(f string, l int) (d *ast.FuncDecl) {
+	// Walk the AST to find the lineToByteOffset that fits the line number.
+	var lastFunc *ast.FuncDecl
+	var found ast.Node
+	// Inspect() goes depth first. This means for example that a function like:
+	// func a() {
+	//   b := func() {}
+	//   c()
+	// }
+	//
+	// Were we are looking at the c() call can return confused values. It is
+	// important to look at the actual ast.Node hierarchy.
+	ast.Inspect(p.parsed, func(n ast.Node) bool {
+		if d != nil {
+			return false
+		}
+		if n == nil {
+			return true
+		}
+		if found != nil {
+			// We are walking up.
+		}
+		if int(n.Pos()) >= p.lineToByteOffset[l] {
+			// We are expecting a ast.CallExpr node. It can be harder to figure out
+			// when there are multiple calls on a single line, as the stack trace
+			// doesn't have file byte offset information, only line based.
+			// gofmt will always format to one function call per line but there can
+			// be edge cases, like:
+			//   a = A{Foo(), Bar()}
+			d = lastFunc
+			//p.processNode(call, n)
+			return false
+		} else if f, ok := n.(*ast.FuncDecl); ok {
+			lastFunc = f
+		}
+		return true
+	})
+	return
+}
+
+func name(n ast.Node) string {
+	if _, ok := n.(*ast.InterfaceType); ok {
+		return "interface{}"
+	}
+	if i, ok := n.(*ast.Ident); ok {
+		return i.Name
+	}
+	if _, ok := n.(*ast.FuncType); ok {
+		return "func"
+	}
+	if s, ok := n.(*ast.SelectorExpr); ok {
+		return s.Sel.Name
+	}
+	// TODO(maruel): Implement anything missing.
+	return "<unknown>"
+}
+
+// fieldToType returns the type name and whether if it's an ellipsis.
+func fieldToType(f *ast.Field) (string, bool) {
+	switch arg := f.Type.(type) {
+	case *ast.ArrayType:
+		return "[]" + name(arg.Elt), false
+	case *ast.Ellipsis:
+		return name(arg.Elt), true
+	case *ast.FuncType:
+		// Do not print the function signature to not overload the trace.
+		return "func", false
+	case *ast.Ident:
+		return arg.Name, false
+	case *ast.InterfaceType:
+		return "interface{}", false
+	case *ast.SelectorExpr:
+		return arg.Sel.Name, false
+	case *ast.StarExpr:
+		return "*" + name(arg.X), false
+	default:
+		// TODO(maruel): Implement anything missing.
+		return "<unknown>", false
+	}
+}
+
+// extractArgumentsType returns the name of the type of each input argument.
+func extractArgumentsType(f *ast.FuncDecl) ([]string, bool) {
+	var fields []*ast.Field
+	if f.Recv != nil {
+		if len(f.Recv.List) != 1 {
+			panic("Expect only one receiver; please fix panicparse's code")
+		}
+		// If it is an object receiver (vs a pointer receiver), its address is not
+		// printed in the stack trace so it needs to be ignored.
+		if _, ok := f.Recv.List[0].Type.(*ast.StarExpr); ok {
+			fields = append(fields, f.Recv.List[0])
+		}
+	}
+	var types []string
+	extra := false
+	for _, arg := range append(fields, f.Type.Params.List...) {
+		// Assert that extra is only set on the last item of fields?
+		var t string
+		t, extra = fieldToType(arg)
+		mult := len(arg.Names)
+		if mult == 0 {
+			mult = 1
+		}
+		for i := 0; i < mult; i++ {
+			types = append(types, t)
+		}
+	}
+	return types, extra
+}
+
+// processCall walks the function and populate call accordingly.
+func processCall(call *Call, f *ast.FuncDecl) {
+	values := make([]uint64, len(call.Args.Values))
+	for i := range call.Args.Values {
+		values[i] = call.Args.Values[i].Value
+	}
+	index := 0
+	pop := func() uint64 {
+		if len(values) != 0 {
+			x := values[0]
+			values = values[1:]
+			index++
+			return x
+		}
+		return 0
+	}
+	popName := func() string {
+		n := call.Args.Values[index].Name
+		v := pop()
+		if len(n) == 0 {
+			return fmt.Sprintf("0x%x", v)
+		}
+		return n
+	}
+
+	types, extra := extractArgumentsType(f)
+	for i := 0; len(values) != 0; i++ {
+		var t string
+		if i >= len(types) {
+			if !extra {
+				// These are unexpected value! Print them as hex.
+				call.Args.Processed = append(call.Args.Processed, popName())
+				continue
+			}
+			t = types[len(types)-1]
+		} else {
+			t = types[i]
+		}
+		switch t {
+		case "float32":
+			call.Args.Processed = append(call.Args.Processed, fmt.Sprintf("%g", math.Float32frombits(uint32(pop()))))
+		case "float64":
+			call.Args.Processed = append(call.Args.Processed, fmt.Sprintf("%g", math.Float64frombits(pop())))
+		case "int", "int8", "int16", "int32", "int64", "uint", "uint8", "uint16", "uint32", "uint64":
+			call.Args.Processed = append(call.Args.Processed, fmt.Sprintf("%d", pop()))
+		case "string":
+			call.Args.Processed = append(call.Args.Processed, fmt.Sprintf("%s(%s, len=%d)", t, popName(), pop()))
+		default:
+			if strings.HasPrefix(t, "*") {
+				call.Args.Processed = append(call.Args.Processed, fmt.Sprintf("%s(%s)", t, popName()))
+			} else if strings.HasPrefix(t, "[]") {
+				call.Args.Processed = append(call.Args.Processed, fmt.Sprintf("%s(%s len=%d cap=%d)", t, popName(), pop(), pop()))
+			} else {
+				// Assumes it's an interface. For now, discard the object value, which
+				// is probably not a good idea.
+				call.Args.Processed = append(call.Args.Processed, fmt.Sprintf("%s(%s)", t, popName()))
+				pop()
+			}
+		}
+		if len(values) == 0 && call.Args.Elided {
+			return
+		}
+	}
+}
diff --git a/vendor/github.com/maruel/panicparse/stack/stack.go b/vendor/github.com/maruel/panicparse/stack/stack.go
new file mode 100644
index 000000000..cfb502e66
--- /dev/null
+++ b/vendor/github.com/maruel/panicparse/stack/stack.go
@@ -0,0 +1,832 @@
+// Copyright 2015 Marc-Antoine Ruel. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+// Package stack analyzes stack dump of Go processes and simplifies it.
+//
+// It is mostly useful on servers will large number of identical goroutines,
+// making the crash dump harder to read than strictly necesary.
+package stack
+
+import (
+	"bufio"
+	"bytes"
+	"errors"
+	"fmt"
+	"io"
+	"math"
+	"net/url"
+	"os"
+	"path/filepath"
+	"regexp"
+	"runtime"
+	"sort"
+	"strconv"
+	"strings"
+	"unicode"
+	"unicode/utf8"
+)
+
+const lockedToThread = "locked to thread"
+
+var (
+	// TODO(maruel): Handle corrupted stack cases:
+	// - missed stack barrier
+	// - found next stack barrier at 0x123; expected
+	// - runtime: unexpected return pc for FUNC_NAME called from 0x123
+
+	reRoutineHeader = regexp.MustCompile("^goroutine (\\d+) \\[([^\\]]+)\\]\\:\n$")
+	reMinutes       = regexp.MustCompile("^(\\d+) minutes$")
+	reUnavail       = regexp.MustCompile("^(?:\t| +)goroutine running on other thread; stack unavailable")
+	// See gentraceback() in src/runtime/traceback.go for more information.
+	// - Sometimes the source file comes up as "<autogenerated>". It is the
+	//   compiler than generated these, not the runtime.
+	// - The tab may be replaced with spaces when a user copy-paste it, handle
+	//   this transparently.
+	// - "runtime.gopanic" is explicitly replaced with "panic" by gentraceback().
+	// - The +0x123 byte offset is printed when frame.pc > _func.entry. _func is
+	//   generated by the linker.
+	// - The +0x123 byte offset is not included with generated code, e.g. unnamed
+	//   functions "func·006()" which is generally go func() { ... }()
+	//   statements. Since the _func is generated at runtime, it's probably why
+	//   _func.entry is not set.
+	// - C calls may have fp=0x123 sp=0x123 appended. I think it normally happens
+	//   when a signal is not correctly handled. It is printed with m.throwing>0.
+	//   These are discarded.
+	// - For cgo, the source file may be "??".
+	reFile = regexp.MustCompile("^(?:\t| +)(\\?\\?|\\<autogenerated\\>|.+\\.(?:c|go|s))\\:(\\d+)(?:| \\+0x[0-9a-f]+)(?:| fp=0x[0-9a-f]+ sp=0x[0-9a-f]+)\n$")
+	// Sadly, it doesn't note the goroutine number so we could cascade them per
+	// parenthood.
+	reCreated = regexp.MustCompile("^created by (.+)\n$")
+	reFunc    = regexp.MustCompile("^(.+)\\((.*)\\)\n$")
+	reElided  = regexp.MustCompile("^\\.\\.\\.additional frames elided\\.\\.\\.\n$")
+	// Include frequent GOROOT value on Windows, distro provided and user
+	// installed path. This simplifies the user's life when processing a trace
+	// generated on another VM.
+	// TODO(maruel): Guess the path automatically via traces containing the
+	// 'runtime' package, which is very frequent. This would be "less bad" than
+	// throwing up random values at the parser.
+	goroots = []string{runtime.GOROOT(), "c:/go", "/usr/lib/go", "/usr/local/go"}
+)
+
+// Similarity is the level at which two call lines arguments must match to be
+// considered similar enough to coalesce them.
+type Similarity int
+
+const (
+	// ExactFlags requires same bits (e.g. Locked).
+	ExactFlags Similarity = iota
+	// ExactLines requests the exact same arguments on the call line.
+	ExactLines
+	// AnyPointer considers different pointers a similar call line.
+	AnyPointer
+	// AnyValue accepts any value as similar call line.
+	AnyValue
+)
+
+// Function is a function call.
+//
+// Go stack traces print a mangled function call, this wrapper unmangle the
+// string before printing and adds other filtering methods.
+type Function struct {
+	Raw string
+}
+
+// String is the fully qualified function name.
+//
+// Sadly Go is a bit confused when the package name doesn't match the directory
+// containing the source file and will use the directory name instead of the
+// real package name.
+func (f Function) String() string {
+	s, _ := url.QueryUnescape(f.Raw)
+	return s
+}
+
+// Name is the naked function name.
+func (f Function) Name() string {
+	parts := strings.SplitN(filepath.Base(f.Raw), ".", 2)
+	if len(parts) == 1 {
+		return parts[0]
+	}
+	return parts[1]
+}
+
+// PkgName is the package name for this function reference.
+func (f Function) PkgName() string {
+	parts := strings.SplitN(filepath.Base(f.Raw), ".", 2)
+	if len(parts) == 1 {
+		return ""
+	}
+	s, _ := url.QueryUnescape(parts[0])
+	return s
+}
+
+// PkgDotName returns "<package>.<func>" format.
+func (f Function) PkgDotName() string {
+	parts := strings.SplitN(filepath.Base(f.Raw), ".", 2)
+	s, _ := url.QueryUnescape(parts[0])
+	if len(parts) == 1 {
+		return parts[0]
+	}
+	if s != "" || parts[1] != "" {
+		return s + "." + parts[1]
+	}
+	return ""
+}
+
+// IsExported returns true if the function is exported.
+func (f Function) IsExported() bool {
+	name := f.Name()
+	parts := strings.Split(name, ".")
+	r, _ := utf8.DecodeRuneInString(parts[len(parts)-1])
+	if unicode.ToUpper(r) == r {
+		return true
+	}
+	return f.PkgName() == "main" && name == "main"
+}
+
+// Arg is an argument on a Call.
+type Arg struct {
+	Value uint64 // Value is the raw value as found in the stack trace
+	Name  string // Name is a pseudo name given to the argument
+}
+
+// IsPtr returns true if we guess it's a pointer. It's only a guess, it can be
+// easily be confused by a bitmask.
+func (a *Arg) IsPtr() bool {
+	// Assumes all pointers are above 16Mb and positive.
+	return a.Value > 16*1024*1024 && a.Value < math.MaxInt64
+}
+
+func (a Arg) String() string {
+	if a.Name != "" {
+		return a.Name
+	}
+	if a.Value == 0 {
+		return "0"
+	}
+	return fmt.Sprintf("0x%x", a.Value)
+}
+
+// Args is a series of function call arguments.
+type Args struct {
+	Values    []Arg    // Values is the arguments as shown on the stack trace. They are mangled via simplification.
+	Processed []string // Processed is the arguments generated from processing the source files. It can have a length lower than Values.
+	Elided    bool     // If set, it means there was a trailing ", ..."
+}
+
+func (a Args) String() string {
+	var v []string
+	if len(a.Processed) != 0 {
+		v = make([]string, 0, len(a.Processed))
+		for _, item := range a.Processed {
+			v = append(v, item)
+		}
+	} else {
+		v = make([]string, 0, len(a.Values))
+		for _, item := range a.Values {
+			v = append(v, item.String())
+		}
+	}
+	if a.Elided {
+		v = append(v, "...")
+	}
+	return strings.Join(v, ", ")
+}
+
+// Equal returns true only if both arguments are exactly equal.
+func (a *Args) Equal(r *Args) bool {
+	if a.Elided != r.Elided || len(a.Values) != len(r.Values) {
+		return false
+	}
+	for i, l := range a.Values {
+		if l != r.Values[i] {
+			return false
+		}
+	}
+	return true
+}
+
+// Similar returns true if the two Args are equal or almost but not quite
+// equal.
+func (a *Args) Similar(r *Args, similar Similarity) bool {
+	if a.Elided != r.Elided || len(a.Values) != len(r.Values) {
+		return false
+	}
+	if similar == AnyValue {
+		return true
+	}
+	for i, l := range a.Values {
+		switch similar {
+		case ExactFlags, ExactLines:
+			if l != r.Values[i] {
+				return false
+			}
+		default:
+			if l.IsPtr() != r.Values[i].IsPtr() || (!l.IsPtr() && l != r.Values[i]) {
+				return false
+			}
+		}
+	}
+	return true
+}
+
+// Merge merges two similar Args, zapping out differences.
+func (a *Args) Merge(r *Args) Args {
+	out := Args{
+		Values: make([]Arg, len(a.Values)),
+		Elided: a.Elided,
+	}
+	for i, l := range a.Values {
+		if l != r.Values[i] {
+			out.Values[i].Name = "*"
+			out.Values[i].Value = l.Value
+		} else {
+			out.Values[i] = l
+		}
+	}
+	return out
+}
+
+// Call is an item in the stack trace.
+type Call struct {
+	SourcePath string   // Full path name of the source file
+	Line       int      // Line number
+	Func       Function // Fully qualified function name (encoded).
+	Args       Args     // Call arguments
+}
+
+// Equal returns true only if both calls are exactly equal.
+func (c *Call) Equal(r *Call) bool {
+	return c.SourcePath == r.SourcePath && c.Line == r.Line && c.Func == r.Func && c.Args.Equal(&r.Args)
+}
+
+// Similar returns true if the two Call are equal or almost but not quite
+// equal.
+func (c *Call) Similar(r *Call, similar Similarity) bool {
+	return c.SourcePath == r.SourcePath && c.Line == r.Line && c.Func == r.Func && c.Args.Similar(&r.Args, similar)
+}
+
+// Merge merges two similar Call, zapping out differences.
+func (c *Call) Merge(r *Call) Call {
+	return Call{
+		SourcePath: c.SourcePath,
+		Line:       c.Line,
+		Func:       c.Func,
+		Args:       c.Args.Merge(&r.Args),
+	}
+}
+
+// SourceName returns the base file name of the source file.
+func (c *Call) SourceName() string {
+	return filepath.Base(c.SourcePath)
+}
+
+// SourceLine returns "source.go:line", including only the base file name.
+func (c *Call) SourceLine() string {
+	return fmt.Sprintf("%s:%d", c.SourceName(), c.Line)
+}
+
+// FullSourceLine returns "/path/to/source.go:line".
+func (c *Call) FullSourceLine() string {
+	return fmt.Sprintf("%s:%d", c.SourcePath, c.Line)
+}
+
+// PkgSource is one directory plus the file name of the source file.
+func (c *Call) PkgSource() string {
+	return filepath.Join(filepath.Base(filepath.Dir(c.SourcePath)), c.SourceName())
+}
+
+const testMainSource = "_test" + string(os.PathSeparator) + "_testmain.go"
+
+// IsStdlib returns true if it is a Go standard library function. This includes
+// the 'go test' generated main executable.
+func (c *Call) IsStdlib() bool {
+	for _, goroot := range goroots {
+		if strings.HasPrefix(c.SourcePath, goroot) {
+			return true
+		}
+	}
+	// Consider _test/_testmain.go as stdlib since it's injected by "go test".
+	return c.PkgSource() == testMainSource
+}
+
+// IsPkgMain returns true if it is in the main package.
+func (c *Call) IsPkgMain() bool {
+	return c.Func.PkgName() == "main"
+}
+
+// Stack is a call stack.
+type Stack struct {
+	Calls  []Call // Call stack. First is original function, last is leaf function.
+	Elided bool   // Happens when there's >100 items in Stack, currently hardcoded in package runtime.
+}
+
+// Equal returns true on if both call stacks are exactly equal.
+func (s *Stack) Equal(r *Stack) bool {
+	if len(s.Calls) != len(r.Calls) || s.Elided != r.Elided {
+		return false
+	}
+	for i := range s.Calls {
+		if !s.Calls[i].Equal(&r.Calls[i]) {
+			return false
+		}
+	}
+	return true
+}
+
+// Similar returns true if the two Stack are equal or almost but not quite
+// equal.
+func (s *Stack) Similar(r *Stack, similar Similarity) bool {
+	if len(s.Calls) != len(r.Calls) || s.Elided != r.Elided {
+		return false
+	}
+	for i := range s.Calls {
+		if !s.Calls[i].Similar(&r.Calls[i], similar) {
+			return false
+		}
+	}
+	return true
+}
+
+// Merge merges two similar Stack, zapping out differences.
+func (s *Stack) Merge(r *Stack) *Stack {
+	// Assumes similar stacks have the same length.
+	out := &Stack{
+		Calls:  make([]Call, len(s.Calls)),
+		Elided: s.Elided,
+	}
+	for i := range s.Calls {
+		out.Calls[i] = s.Calls[i].Merge(&r.Calls[i])
+	}
+	return out
+}
+
+// Less compares two Stack, where the ones that are less are more
+// important, so they come up front. A Stack with more private functions is
+// 'less' so it is at the top. Inversely, a Stack with only public
+// functions is 'more' so it is at the bottom.
+func (s *Stack) Less(r *Stack) bool {
+	lStdlib := 0
+	lPrivate := 0
+	for _, c := range s.Calls {
+		if c.IsStdlib() {
+			lStdlib++
+		} else {
+			lPrivate++
+		}
+	}
+	rStdlib := 0
+	rPrivate := 0
+	for _, s := range r.Calls {
+		if s.IsStdlib() {
+			rStdlib++
+		} else {
+			rPrivate++
+		}
+	}
+	if lPrivate > rPrivate {
+		return true
+	}
+	if lPrivate < rPrivate {
+		return false
+	}
+	if lStdlib > rStdlib {
+		return false
+	}
+	if lStdlib < rStdlib {
+		return true
+	}
+
+	// Stack lengths are the same.
+	for x := range s.Calls {
+		if s.Calls[x].Func.Raw < r.Calls[x].Func.Raw {
+			return true
+		}
+		if s.Calls[x].Func.Raw > r.Calls[x].Func.Raw {
+			return true
+		}
+		if s.Calls[x].PkgSource() < r.Calls[x].PkgSource() {
+			return true
+		}
+		if s.Calls[x].PkgSource() > r.Calls[x].PkgSource() {
+			return true
+		}
+		if s.Calls[x].Line < r.Calls[x].Line {
+			return true
+		}
+		if s.Calls[x].Line > r.Calls[x].Line {
+			return true
+		}
+	}
+	return false
+}
+
+// Signature represents the signature of one or multiple goroutines.
+//
+// It is effectively the stack trace plus the goroutine internal bits, like
+// it's state, if it is thread locked, which call site created this goroutine,
+// etc.
+type Signature struct {
+	// Use git grep 'gopark(|unlock)\(' to find them all plus everything listed
+	// in runtime/traceback.go. Valid values includes:
+	//     - chan send, chan receive, select
+	//     - finalizer wait, mark wait (idle),
+	//     - Concurrent GC wait, GC sweep wait, force gc (idle)
+	//     - IO wait, panicwait
+	//     - semacquire, semarelease
+	//     - sleep, timer goroutine (idle)
+	//     - trace reader (blocked)
+	// Stuck cases:
+	//     - chan send (nil chan), chan receive (nil chan), select (no cases)
+	// Runnable states:
+	//    - idle, runnable, running, syscall, waiting, dead, enqueue, copystack,
+	// Scan states:
+	//    - scan, scanrunnable, scanrunning, scansyscall, scanwaiting, scandead,
+	//      scanenqueue
+	State     string
+	CreatedBy Call // Which other goroutine which created this one.
+	SleepMin  int  // Wait time in minutes, if applicable.
+	SleepMax  int  // Wait time in minutes, if applicable.
+	Stack     Stack
+	Locked    bool // Locked to an OS thread.
+}
+
+// Equal returns true only if both signatures are exactly equal.
+func (s *Signature) Equal(r *Signature) bool {
+	if s.State != r.State || !s.CreatedBy.Equal(&r.CreatedBy) || s.Locked != r.Locked || s.SleepMin != r.SleepMin || s.SleepMax != r.SleepMax {
+		return false
+	}
+	return s.Stack.Equal(&r.Stack)
+}
+
+// Similar returns true if the two Signature are equal or almost but not quite
+// equal.
+func (s *Signature) Similar(r *Signature, similar Similarity) bool {
+	if s.State != r.State || !s.CreatedBy.Similar(&r.CreatedBy, similar) {
+		return false
+	}
+	if similar == ExactFlags && s.Locked != r.Locked {
+		return false
+	}
+	return s.Stack.Similar(&r.Stack, similar)
+}
+
+// Merge merges two similar Signature, zapping out differences.
+func (s *Signature) Merge(r *Signature) *Signature {
+	min := s.SleepMin
+	if r.SleepMin < min {
+		min = r.SleepMin
+	}
+	max := s.SleepMax
+	if r.SleepMax > max {
+		max = r.SleepMax
+	}
+	return &Signature{
+		State:     s.State,     // Drop right side.
+		CreatedBy: s.CreatedBy, // Drop right side.
+		SleepMin:  min,
+		SleepMax:  max,
+		Stack:     *s.Stack.Merge(&r.Stack),
+		Locked:    s.Locked || r.Locked, // TODO(maruel): This is weirdo.
+	}
+}
+
+// Less compares two Signature, where the ones that are less are more
+// important, so they come up front. A Signature with more private functions is
+// 'less' so it is at the top. Inversely, a Signature with only public
+// functions is 'more' so it is at the bottom.
+func (s *Signature) Less(r *Signature) bool {
+	if s.Stack.Less(&r.Stack) {
+		return true
+	}
+	if r.Stack.Less(&s.Stack) {
+		return false
+	}
+	if s.Locked && !r.Locked {
+		return true
+	}
+	if r.Locked && !s.Locked {
+		return false
+	}
+	if s.State < r.State {
+		return true
+	}
+	if s.State > r.State {
+		return false
+	}
+	return false
+}
+
+// Goroutine represents the state of one goroutine, including the stack trace.
+type Goroutine struct {
+	Signature      // It's stack trace, internal bits, state, which call site created it, etc.
+	ID        int  // Goroutine ID.
+	First     bool // First is the goroutine first printed, normally the one that crashed.
+}
+
+// Bucketize returns the number of similar goroutines.
+func Bucketize(goroutines []Goroutine, similar Similarity) map[*Signature][]Goroutine {
+	out := map[*Signature][]Goroutine{}
+	// O(n²). Fix eventually.
+	for _, routine := range goroutines {
+		found := false
+		for key := range out {
+			// When a match is found, this effectively drops the other goroutine ID.
+			if key.Similar(&routine.Signature, similar) {
+				found = true
+				if !key.Equal(&routine.Signature) {
+					// Almost but not quite equal. There's different pointers passed
+					// around but the same values. Zap out the different values.
+					newKey := key.Merge(&routine.Signature)
+					out[newKey] = append(out[key], routine)
+					delete(out, key)
+				} else {
+					out[key] = append(out[key], routine)
+				}
+				break
+			}
+		}
+		if !found {
+			key := &Signature{}
+			*key = routine.Signature
+			out[key] = []Goroutine{routine}
+		}
+	}
+	return out
+}
+
+// Bucket is a stack trace signature and the list of goroutines that fits this
+// signature.
+type Bucket struct {
+	Signature
+	Routines []Goroutine
+}
+
+// First returns true if it contains the first goroutine, e.g. the ones that
+// likely generated the panic() call, if any.
+func (b *Bucket) First() bool {
+	for _, r := range b.Routines {
+		if r.First {
+			return true
+		}
+	}
+	return false
+}
+
+// Less does reverse sort.
+func (b *Bucket) Less(r *Bucket) bool {
+	if b.First() {
+		return true
+	}
+	if r.First() {
+		return false
+	}
+	return b.Signature.Less(&r.Signature)
+}
+
+// Buckets is a list of Bucket sorted by repeation count.
+type Buckets []Bucket
+
+func (b Buckets) Len() int {
+	return len(b)
+}
+
+func (b Buckets) Less(i, j int) bool {
+	return b[i].Less(&b[j])
+}
+
+func (b Buckets) Swap(i, j int) {
+	b[j], b[i] = b[i], b[j]
+}
+
+// SortBuckets creates a list of Bucket from each goroutine stack trace count.
+func SortBuckets(buckets map[*Signature][]Goroutine) Buckets {
+	out := make(Buckets, 0, len(buckets))
+	for signature, count := range buckets {
+		out = append(out, Bucket{*signature, count})
+	}
+	sort.Sort(out)
+	return out
+}
+
+// scanLines is similar to bufio.ScanLines except that it:
+//     - doesn't drop '\n'
+//     - doesn't strip '\r'
+//     - returns when the data is bufio.MaxScanTokenSize bytes
+func scanLines(data []byte, atEOF bool) (advance int, token []byte, err error) {
+	if atEOF && len(data) == 0 {
+		return 0, nil, nil
+	}
+	if i := bytes.IndexByte(data, '\n'); i >= 0 {
+		return i + 1, data[0 : i+1], nil
+	}
+	if atEOF {
+		return len(data), data, nil
+	}
+	if len(data) >= bufio.MaxScanTokenSize {
+		// Returns the line even if it is not at EOF nor has a '\n', otherwise the
+		// scanner will return bufio.ErrTooLong which is definitely not what we
+		// want.
+		return len(data), data, nil
+	}
+	return 0, nil, nil
+}
+
+// ParseDump processes the output from runtime.Stack().
+//
+// It supports piping from another command and assumes there is junk before the
+// actual stack trace. The junk is streamed to out.
+func ParseDump(r io.Reader, out io.Writer) ([]Goroutine, error) {
+	goroutines := make([]Goroutine, 0, 16)
+	var goroutine *Goroutine
+	scanner := bufio.NewScanner(r)
+	scanner.Split(scanLines)
+	// TODO(maruel): Use a formal state machine. Patterns follows:
+	// - reRoutineHeader
+	//   Either:
+	//     - reUnavail
+	//     - reFunc + reFile in a loop
+	//     - reElided
+	//   Optionally ends with:
+	//     - reCreated + reFile
+	// Between each goroutine stack dump: an empty line
+	created := false
+	// firstLine is the first line after the reRoutineHeader header line.
+	firstLine := false
+	for scanner.Scan() {
+		line := scanner.Text()
+		if line == "\n" {
+			if goroutine != nil {
+				goroutine = nil
+				continue
+			}
+		} else if line[len(line)-1] == '\n' {
+			if goroutine == nil {
+				if match := reRoutineHeader.FindStringSubmatch(line); match != nil {
+					if id, err := strconv.Atoi(match[1]); err == nil {
+						// See runtime/traceback.go.
+						// "<state>, \d+ minutes, locked to thread"
+						items := strings.Split(match[2], ", ")
+						sleep := 0
+						locked := false
+						for i := 1; i < len(items); i++ {
+							if items[i] == lockedToThread {
+								locked = true
+								continue
+							}
+							// Look for duration, if any.
+							if match2 := reMinutes.FindStringSubmatch(items[i]); match2 != nil {
+								sleep, _ = strconv.Atoi(match2[1])
+							}
+						}
+						goroutines = append(goroutines, Goroutine{
+							Signature: Signature{
+								State:    items[0],
+								SleepMin: sleep,
+								SleepMax: sleep,
+								Locked:   locked,
+							},
+							ID:    id,
+							First: len(goroutines) == 0,
+						})
+						goroutine = &goroutines[len(goroutines)-1]
+						firstLine = true
+						continue
+					}
+				}
+			} else {
+				if firstLine {
+					firstLine = false
+					if match := reUnavail.FindStringSubmatch(line); match != nil {
+						// Generate a fake stack entry.
+						goroutine.Stack.Calls = []Call{{SourcePath: "<unavailable>"}}
+						continue
+					}
+				}
+
+				if match := reFile.FindStringSubmatch(line); match != nil {
+					// Triggers after a reFunc or a reCreated.
+					num, err := strconv.Atoi(match[2])
+					if err != nil {
+						return goroutines, fmt.Errorf("failed to parse int on line: \"%s\"", line)
+					}
+					if created {
+						created = false
+						goroutine.CreatedBy.SourcePath = match[1]
+						goroutine.CreatedBy.Line = num
+					} else {
+						i := len(goroutine.Stack.Calls) - 1
+						if i < 0 {
+							return goroutines, errors.New("unexpected order")
+						}
+						goroutine.Stack.Calls[i].SourcePath = match[1]
+						goroutine.Stack.Calls[i].Line = num
+					}
+					continue
+				}
+
+				if match := reCreated.FindStringSubmatch(line); match != nil {
+					created = true
+					goroutine.CreatedBy.Func.Raw = match[1]
+					continue
+				}
+
+				if match := reFunc.FindStringSubmatch(line); match != nil {
+					args := Args{}
+					for _, a := range strings.Split(match[2], ", ") {
+						if a == "..." {
+							args.Elided = true
+							continue
+						}
+						if a == "" {
+							// Remaining values were dropped.
+							break
+						}
+						v, err := strconv.ParseUint(a, 0, 64)
+						if err != nil {
+							return goroutines, fmt.Errorf("failed to parse int on line: \"%s\"", line)
+						}
+						args.Values = append(args.Values, Arg{Value: v})
+					}
+					goroutine.Stack.Calls = append(goroutine.Stack.Calls, Call{Func: Function{match[1]}, Args: args})
+					continue
+				}
+
+				if match := reElided.FindStringSubmatch(line); match != nil {
+					goroutine.Stack.Elided = true
+					continue
+				}
+			}
+		}
+		_, _ = io.WriteString(out, line)
+		goroutine = nil
+	}
+	nameArguments(goroutines)
+	return goroutines, scanner.Err()
+}
+
+// Private stuff.
+
+func nameArguments(goroutines []Goroutine) {
+	// Set a name for any pointer occuring more than once.
+	type object struct {
+		args      []*Arg
+		inPrimary bool
+		id        int
+	}
+	objects := map[uint64]object{}
+	// Enumerate all the arguments.
+	for i := range goroutines {
+		for j := range goroutines[i].Stack.Calls {
+			for k := range goroutines[i].Stack.Calls[j].Args.Values {
+				arg := goroutines[i].Stack.Calls[j].Args.Values[k]
+				if arg.IsPtr() {
+					objects[arg.Value] = object{
+						args:      append(objects[arg.Value].args, &goroutines[i].Stack.Calls[j].Args.Values[k]),
+						inPrimary: objects[arg.Value].inPrimary || i == 0,
+					}
+				}
+			}
+		}
+		// CreatedBy.Args is never set.
+	}
+	order := uint64Slice{}
+	for k, obj := range objects {
+		if len(obj.args) > 1 && obj.inPrimary {
+			order = append(order, k)
+		}
+	}
+	sort.Sort(order)
+	nextID := 1
+	for _, k := range order {
+		for _, arg := range objects[k].args {
+			arg.Name = fmt.Sprintf("#%d", nextID)
+		}
+		nextID++
+	}
+
+	// Now do the rest. This is done so the output is deterministic.
+	order = uint64Slice{}
+	for k := range objects {
+		order = append(order, k)
+	}
+	sort.Sort(order)
+	for _, k := range order {
+		// Process the remaining pointers, they were not referenced by primary
+		// thread so will have higher IDs.
+		if objects[k].inPrimary {
+			continue
+		}
+		for _, arg := range objects[k].args {
+			arg.Name = fmt.Sprintf("#%d", nextID)
+		}
+		nextID++
+	}
+}
+
+type uint64Slice []uint64
+
+func (a uint64Slice) Len() int           { return len(a) }
+func (a uint64Slice) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
+func (a uint64Slice) Less(i, j int) bool { return a[i] < a[j] }
diff --git a/vendor/github.com/maruel/panicparse/stack/ui.go b/vendor/github.com/maruel/panicparse/stack/ui.go
new file mode 100644
index 000000000..b125fc940
--- /dev/null
+++ b/vendor/github.com/maruel/panicparse/stack/ui.go
@@ -0,0 +1,139 @@
+// Copyright 2016 Marc-Antoine Ruel. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+package stack
+
+import (
+	"fmt"
+	"strings"
+)
+
+// Palette defines the color used.
+//
+// An empty object Palette{} can be used to disable coloring.
+type Palette struct {
+	EOLReset string
+
+	// Routine header.
+	RoutineFirst string // The first routine printed.
+	Routine      string // Following routines.
+	CreatedBy    string
+
+	// Call line.
+	Package                string
+	SourceFile             string
+	FunctionStdLib         string
+	FunctionStdLibExported string
+	FunctionMain           string
+	FunctionOther          string
+	FunctionOtherExported  string
+	Arguments              string
+}
+
+// CalcLengths returns the maximum length of the source lines and package names.
+func CalcLengths(buckets Buckets, fullPath bool) (int, int) {
+	srcLen := 0
+	pkgLen := 0
+	for _, bucket := range buckets {
+		for _, line := range bucket.Signature.Stack.Calls {
+			l := 0
+			if fullPath {
+				l = len(line.FullSourceLine())
+			} else {
+				l = len(line.SourceLine())
+			}
+			if l > srcLen {
+				srcLen = l
+			}
+			l = len(line.Func.PkgName())
+			if l > pkgLen {
+				pkgLen = l
+			}
+		}
+	}
+	return srcLen, pkgLen
+}
+
+// functionColor returns the color to be used for the function name based on
+// the type of package the function is in.
+func (p *Palette) functionColor(line *Call) string {
+	if line.IsStdlib() {
+		if line.Func.IsExported() {
+			return p.FunctionStdLibExported
+		}
+		return p.FunctionStdLib
+	} else if line.IsPkgMain() {
+		return p.FunctionMain
+	} else if line.Func.IsExported() {
+		return p.FunctionOtherExported
+	}
+	return p.FunctionOther
+}
+
+// routineColor returns the color for the header of the goroutines bucket.
+func (p *Palette) routineColor(bucket *Bucket, multipleBuckets bool) string {
+	if bucket.First() && multipleBuckets {
+		return p.RoutineFirst
+	}
+	return p.Routine
+}
+
+// BucketHeader prints the header of a goroutine signature.
+func (p *Palette) BucketHeader(bucket *Bucket, fullPath, multipleBuckets bool) string {
+	extra := ""
+	if bucket.SleepMax != 0 {
+		if bucket.SleepMin != bucket.SleepMax {
+			extra += fmt.Sprintf(" [%d~%d minutes]", bucket.SleepMin, bucket.SleepMax)
+		} else {
+			extra += fmt.Sprintf(" [%d minutes]", bucket.SleepMax)
+		}
+	}
+	if bucket.Locked {
+		extra += " [locked]"
+	}
+	created := bucket.CreatedBy.Func.PkgDotName()
+	if created != "" {
+		created += " @ "
+		if fullPath {
+			created += bucket.CreatedBy.FullSourceLine()
+		} else {
+			created += bucket.CreatedBy.SourceLine()
+		}
+		extra += p.CreatedBy + " [Created by " + created + "]"
+	}
+	return fmt.Sprintf(
+		"%s%d: %s%s%s\n",
+		p.routineColor(bucket, multipleBuckets), len(bucket.Routines),
+		bucket.State, extra,
+		p.EOLReset)
+}
+
+// callLine prints one stack line.
+func (p *Palette) callLine(line *Call, srcLen, pkgLen int, fullPath bool) string {
+	src := ""
+	if fullPath {
+		src = line.FullSourceLine()
+	} else {
+		src = line.SourceLine()
+	}
+	return fmt.Sprintf(
+		"    %s%-*s %s%-*s %s%s%s(%s)%s",
+		p.Package, pkgLen, line.Func.PkgName(),
+		p.SourceFile, srcLen, src,
+		p.functionColor(line), line.Func.Name(),
+		p.Arguments, line.Args,
+		p.EOLReset)
+}
+
+// StackLines prints one complete stack trace, without the header.
+func (p *Palette) StackLines(signature *Signature, srcLen, pkgLen int, fullPath bool) string {
+	out := make([]string, len(signature.Stack.Calls))
+	for i := range signature.Stack.Calls {
+		out[i] = p.callLine(&signature.Stack.Calls[i], srcLen, pkgLen, fullPath)
+	}
+	if signature.Stack.Elided {
+		out = append(out, "    (...)")
+	}
+	return strings.Join(out, "\n") + "\n"
+}
diff --git a/vendor/github.com/maruel/panicparse/vendor.yml b/vendor/github.com/maruel/panicparse/vendor.yml
new file mode 100644
index 000000000..ff3d43f5f
--- /dev/null
+++ b/vendor/github.com/maruel/panicparse/vendor.yml
@@ -0,0 +1,17 @@
+vendors:
+- path: github.com/kr/pretty
+  rev: 737b74a46c4bf788349f72cb256fed10aea4d0ac
+- path: github.com/kr/text
+  rev: 7cafcd837844e784b526369c9bce262804aebc60
+- path: github.com/maruel/ut
+  rev: a9c9f15ccfa6f8b90182a53df32f4745586fbae3
+- path: github.com/mattn/go-colorable
+  rev: 9056b7a9f2d1f2d96498d6d146acd1f9d5ed3d59
+- path: github.com/mattn/go-isatty
+  rev: 56b76bdf51f7708750eac80fa38b952bb9f32639
+- path: github.com/mgutz/ansi
+  rev: c286dcecd19ff979eeb73ea444e479b903f2cfcb
+- path: github.com/pmezard/go-difflib
+  rev: 792786c7400a136282c1664665ae0a8db921c6c2
+- path: golang.org/x/sys
+  rev: a646d33e2ee3172a661fc09bca23bb4889a41bc8
diff --git a/vendor/github.com/mattn/go-colorable/colorable_others.go b/vendor/github.com/mattn/go-colorable/colorable_others.go
index 52d6653b3..a7fe19a8c 100644
--- a/vendor/github.com/mattn/go-colorable/colorable_others.go
+++ b/vendor/github.com/mattn/go-colorable/colorable_others.go
@@ -7,6 +7,7 @@ import (
 	"os"
 )
 
+// NewColorable return new instance of Writer which handle escape sequence.
 func NewColorable(file *os.File) io.Writer {
 	if file == nil {
 		panic("nil passed instead of *os.File to NewColorable()")
@@ -15,10 +16,12 @@ func NewColorable(file *os.File) io.Writer {
 	return file
 }
 
+// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
 func NewColorableStdout() io.Writer {
 	return os.Stdout
 }
 
+// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
 func NewColorableStderr() io.Writer {
 	return os.Stderr
 }
diff --git a/vendor/github.com/mattn/go-colorable/colorable_windows.go b/vendor/github.com/mattn/go-colorable/colorable_windows.go
index 448277f56..628ad904e 100644
--- a/vendor/github.com/mattn/go-colorable/colorable_windows.go
+++ b/vendor/github.com/mattn/go-colorable/colorable_windows.go
@@ -75,6 +75,7 @@ type Writer struct {
 	oldpos  coord
 }
 
+// NewColorable return new instance of Writer which handle escape sequence from File.
 func NewColorable(file *os.File) io.Writer {
 	if file == nil {
 		panic("nil passed instead of *os.File to NewColorable()")
@@ -90,10 +91,12 @@ func NewColorable(file *os.File) io.Writer {
 	}
 }
 
+// NewColorableStdout return new instance of Writer which handle escape sequence for stdout.
 func NewColorableStdout() io.Writer {
 	return NewColorable(os.Stdout)
 }
 
+// NewColorableStderr return new instance of Writer which handle escape sequence for stderr.
 func NewColorableStderr() io.Writer {
 	return NewColorable(os.Stderr)
 }
@@ -357,6 +360,7 @@ var color256 = map[int]int{
 	255: 0xeeeeee,
 }
 
+// Write write data on console
 func (w *Writer) Write(data []byte) (n int, err error) {
 	var csbi consoleScreenBufferInfo
 	procGetConsoleScreenBufferInfo.Call(uintptr(w.handle), uintptr(unsafe.Pointer(&csbi)))
diff --git a/vendor/github.com/mattn/go-colorable/noncolorable.go b/vendor/github.com/mattn/go-colorable/noncolorable.go
index b60801dcd..ca588c78a 100644
--- a/vendor/github.com/mattn/go-colorable/noncolorable.go
+++ b/vendor/github.com/mattn/go-colorable/noncolorable.go
@@ -5,15 +5,18 @@ import (
 	"io"
 )
 
+// NonColorable hold writer but remove escape sequence.
 type NonColorable struct {
 	out     io.Writer
 	lastbuf bytes.Buffer
 }
 
+// NewNonColorable return new instance of Writer which remove escape sequence from Writer.
 func NewNonColorable(w io.Writer) io.Writer {
 	return &NonColorable{out: w}
 }
 
+// Write write data on console
 func (w *NonColorable) Write(data []byte) (n int, err error) {
 	er := bytes.NewReader(data)
 	var bw [1]byte
diff --git a/vendor/github.com/nsf/termbox-go/README.md b/vendor/github.com/nsf/termbox-go/README.md
index d152da407..e7c57a936 100644
--- a/vendor/github.com/nsf/termbox-go/README.md
+++ b/vendor/github.com/nsf/termbox-go/README.md
@@ -24,6 +24,7 @@ There are also some interesting projects using termbox-go:
  - [snake-game](https://github.com/DyegoCosta/snake-game) is an implementation of the Snake game.
  - [gone](https://github.com/guillaumebreton/gone) is a CLI pomodoro® timer.
  - [Spoof.go](https://github.com/sabey/spoofgo) controllable movement spoofing from the cli
+ - [lf](https://github.com/gokcehan/lf) is a terminal file manager
 
 ### API reference
 [godoc.org/github.com/nsf/termbox-go](http://godoc.org/github.com/nsf/termbox-go)
diff --git a/vendor/github.com/nsf/termbox-go/api.go b/vendor/github.com/nsf/termbox-go/api.go
index b339e532f..b242ddcf3 100644
--- a/vendor/github.com/nsf/termbox-go/api.go
+++ b/vendor/github.com/nsf/termbox-go/api.go
@@ -343,7 +343,6 @@ func PollEvent() Event {
 			return event
 		}
 	}
-	panic("unreachable")
 }
 
 // Returns the size of the internal back buffer (which is mostly the same as
diff --git a/vendor/github.com/nsf/termbox-go/termbox.go b/vendor/github.com/nsf/termbox-go/termbox.go
index 6e5ba6c8f..c2d86c658 100644
--- a/vendor/github.com/nsf/termbox-go/termbox.go
+++ b/vendor/github.com/nsf/termbox-go/termbox.go
@@ -233,10 +233,7 @@ func send_char(x, y int, ch rune) {
 func flush() error {
 	_, err := io.Copy(out, &outbuf)
 	outbuf.Reset()
-	if err != nil {
-		return err
-	}
-	return nil
+	return err
 }
 
 func send_clear() error {
diff --git a/vendor/github.com/pborman/uuid/README.md b/vendor/github.com/pborman/uuid/README.md
index f023d47ca..b0396b274 100644
--- a/vendor/github.com/pborman/uuid/README.md
+++ b/vendor/github.com/pborman/uuid/README.md
@@ -1,7 +1,7 @@
 This project was automatically exported from code.google.com/p/go-uuid
 
 # uuid ![build status](https://travis-ci.org/pborman/uuid.svg?branch=master)
-The uuid package generates and inspects UUIDs based on [RFC 412](http://tools.ietf.org/html/rfc4122) and DCE 1.1: Authentication and Security Services. 
+The uuid package generates and inspects UUIDs based on [RFC 4122](http://tools.ietf.org/html/rfc4122) and DCE 1.1: Authentication and Security Services. 
 
 ###### Install
 `go get github.com/pborman/uuid`
diff --git a/vendor/github.com/rcrowley/go-metrics/gauge.go b/vendor/github.com/rcrowley/go-metrics/gauge.go
index d618c4553..cb57a9388 100644
--- a/vendor/github.com/rcrowley/go-metrics/gauge.go
+++ b/vendor/github.com/rcrowley/go-metrics/gauge.go
@@ -44,7 +44,6 @@ func NewFunctionalGauge(f func() int64) Gauge {
 	return &FunctionalGauge{value: f}
 }
 
-
 // NewRegisteredFunctionalGauge constructs and registers a new StandardGauge.
 func NewRegisteredFunctionalGauge(name string, r Registry, f func() int64) Gauge {
 	c := NewFunctionalGauge(f)
@@ -101,6 +100,7 @@ func (g *StandardGauge) Update(v int64) {
 func (g *StandardGauge) Value() int64 {
 	return atomic.LoadInt64(&g.value)
 }
+
 // FunctionalGauge returns value from given function
 type FunctionalGauge struct {
 	value func() int64
@@ -117,4 +117,4 @@ func (g FunctionalGauge) Snapshot() Gauge { return GaugeSnapshot(g.Value()) }
 // Update panics.
 func (FunctionalGauge) Update(int64) {
 	panic("Update called on a FunctionalGauge")
-}
\ No newline at end of file
+}
diff --git a/vendor/github.com/rcrowley/go-metrics/registry.go b/vendor/github.com/rcrowley/go-metrics/registry.go
index 9086dcbdd..2bb7a1e7d 100644
--- a/vendor/github.com/rcrowley/go-metrics/registry.go
+++ b/vendor/github.com/rcrowley/go-metrics/registry.go
@@ -167,9 +167,9 @@ func NewPrefixedChildRegistry(parent Registry, prefix string) Registry {
 
 // Call the given function for each registered metric.
 func (r *PrefixedRegistry) Each(fn func(string, interface{})) {
-	wrappedFn := func (prefix string) func(string, interface{}) {
+	wrappedFn := func(prefix string) func(string, interface{}) {
 		return func(name string, iface interface{}) {
-			if strings.HasPrefix(name,prefix) {
+			if strings.HasPrefix(name, prefix) {
 				fn(name, iface)
 			} else {
 				return
@@ -184,7 +184,7 @@ func (r *PrefixedRegistry) Each(fn func(string, interface{})) {
 func findPrefix(registry Registry, prefix string) (Registry, string) {
 	switch r := registry.(type) {
 	case *PrefixedRegistry:
-		return findPrefix(r.underlying, r.prefix + prefix)
+		return findPrefix(r.underlying, r.prefix+prefix)
 	case *StandardRegistry:
 		return r, prefix
 	}
diff --git a/vendor/github.com/rcrowley/go-metrics/sample.go b/vendor/github.com/rcrowley/go-metrics/sample.go
index 5f6a37788..fecee5ef6 100644
--- a/vendor/github.com/rcrowley/go-metrics/sample.go
+++ b/vendor/github.com/rcrowley/go-metrics/sample.go
@@ -33,7 +33,7 @@ type Sample interface {
 // priority reservoir.  See Cormode et al's "Forward Decay: A Practical Time
 // Decay Model for Streaming Systems".
 //
-// <http://www.research.att.com/people/Cormode_Graham/library/publications/CormodeShkapenyukSrivastavaXu09.pdf>
+// <http://dimacs.rutgers.edu/~graham/pubs/papers/fwddecay.pdf>
 type ExpDecaySample struct {
 	alpha         float64
 	count         int64
@@ -302,6 +302,13 @@ type SampleSnapshot struct {
 	values []int64
 }
 
+func NewSampleSnapshot(count int64, values []int64) *SampleSnapshot {
+	return &SampleSnapshot{
+		count:  count,
+		values: values,
+	}
+}
+
 // Clear panics.
 func (*SampleSnapshot) Clear() {
 	panic("Clear called on a SampleSnapshot")
diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/session.go b/vendor/github.com/syndtr/goleveldb/leveldb/session.go
index f3e747701..ad68a8703 100644
--- a/vendor/github.com/syndtr/goleveldb/leveldb/session.go
+++ b/vendor/github.com/syndtr/goleveldb/leveldb/session.go
@@ -47,6 +47,7 @@ type session struct {
 	o        *cachedOptions
 	icmp     *iComparer
 	tops     *tOps
+	fileRef  map[int64]int
 
 	manifest       *journal.Writer
 	manifestWriter storage.Writer
@@ -69,6 +70,7 @@ func newSession(stor storage.Storage, o *opt.Options) (s *session, err error) {
 	s = &session{
 		stor:     stor,
 		storLock: storLock,
+		fileRef:  make(map[int64]int),
 	}
 	s.setOptions(o)
 	s.tops = newTableOps(s)
diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go b/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go
index 34ad61798..92328933c 100644
--- a/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go
+++ b/vendor/github.com/syndtr/goleveldb/leveldb/session_util.go
@@ -39,6 +39,18 @@ func (s *session) newTemp() storage.FileDesc {
 	return storage.FileDesc{storage.TypeTemp, num}
 }
 
+func (s *session) addFileRef(fd storage.FileDesc, ref int) int {
+	ref += s.fileRef[fd.Num]
+	if ref > 0 {
+		s.fileRef[fd.Num] = ref
+	} else if ref == 0 {
+		delete(s.fileRef, fd.Num)
+	} else {
+		panic(fmt.Sprintf("negative ref: %v", fd))
+	}
+	return ref
+}
+
 // Session state.
 
 // Get current version. This will incr version ref, must call
@@ -46,7 +58,7 @@ func (s *session) newTemp() storage.FileDesc {
 func (s *session) version() *version {
 	s.vmu.Lock()
 	defer s.vmu.Unlock()
-	s.stVersion.ref++
+	s.stVersion.incref()
 	return s.stVersion
 }
 
@@ -59,14 +71,15 @@ func (s *session) tLen(level int) int {
 // Set current version to v.
 func (s *session) setVersion(v *version) {
 	s.vmu.Lock()
-	v.ref = 1 // Holds by session.
-	if old := s.stVersion; old != nil {
-		v.ref++ // Holds by old version.
-		old.next = v
-		old.releaseNB()
+	defer s.vmu.Unlock()
+	// Hold by session. It is important to call this first before releasing
+	// current version, otherwise the still used files might get released.
+	v.incref()
+	if s.stVersion != nil {
+		// Release current version.
+		s.stVersion.releaseNB()
 	}
 	s.stVersion = v
-	s.vmu.Unlock()
 }
 
 // Get current unused file number.
diff --git a/vendor/github.com/syndtr/goleveldb/leveldb/version.go b/vendor/github.com/syndtr/goleveldb/leveldb/version.go
index c60f12c20..73f272af5 100644
--- a/vendor/github.com/syndtr/goleveldb/leveldb/version.go
+++ b/vendor/github.com/syndtr/goleveldb/leveldb/version.go
@@ -34,44 +34,48 @@ type version struct {
 
 	cSeek unsafe.Pointer
 
-	closing bool
-	ref     int
-	// Succeeding version.
-	next *version
+	closing  bool
+	ref      int
+	released bool
 }
 
 func newVersion(s *session) *version {
 	return &version{s: s}
 }
 
+func (v *version) incref() {
+	if v.released {
+		panic("already released")
+	}
+
+	v.ref++
+	if v.ref == 1 {
+		// Incr file ref.
+		for _, tt := range v.levels {
+			for _, t := range tt {
+				v.s.addFileRef(t.fd, 1)
+			}
+		}
+	}
+}
+
 func (v *version) releaseNB() {
 	v.ref--
 	if v.ref > 0 {
 		return
-	}
-	if v.ref < 0 {
+	} else if v.ref < 0 {
 		panic("negative version ref")
 	}
 
-	nextTables := make(map[int64]bool)
-	for _, tt := range v.next.levels {
-		for _, t := range tt {
-			num := t.fd.Num
-			nextTables[num] = true
-		}
-	}
-
 	for _, tt := range v.levels {
 		for _, t := range tt {
-			num := t.fd.Num
-			if _, ok := nextTables[num]; !ok {
+			if v.s.addFileRef(t.fd, -1) == 0 {
 				v.s.tops.remove(t)
 			}
 		}
 	}
 
-	v.next.releaseNB()
-	v.next = nil
+	v.released = true
 }
 
 func (v *version) release() {