.travis, build: autodelete old unstable archives (#13867)

This commit adds a build step to travis to auto-delete unstable archives older than
14 days (our regular release schedule) from Azure via ci.go purge.

The commit also pulls in the latest Azure storage code, also switching over from
the old import path (github.com/Azure/azure-sdk-for-go) to the new split one
(github.com/Azure/azure-storage-go).

1 files changed, 11 insertions, 0 deletions

diff --git a/vendor/github.com/Azure/go-autorest/autorest/date/utility.go b/vendor/github.com/Azure/go-autorest/autorest/date/utility.go
new file mode 100644
index 000000000..207b1a240
--- /dev/null
+++ b/vendor/github.com/Azure/go-autorest/autorest/date/utility.go
@@ -0,0 +1,11 @@
+package date
+
+import (
+	"strings"
+	"time"
+)
+
+// ParseTime to parse Time string to specified format.
+func ParseTime(format string, t string) (d time.Time, err error) {
+	return time.Parse(format, strings.ToUpper(t))
+}