vendor: update everything

* If possible, update each dependency to the latest available version.

* Use releases over commit IDs and avoid vendoring branches.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

vendor/github.com/mattn/go-runewidth/runewidth_windows.go

@@ -1,3 +1,6 @@
+// +build windows
+// +build !appengine
+
 package runewidth
 
 import (
@@ -9,6 +12,7 @@ var (
 	procGetConsoleOutputCP = kernel32.NewProc("GetConsoleOutputCP")
 )
 
+// IsEastAsian return true if the current locale is CJK
 func IsEastAsian() bool {
 	r1, _, _ := procGetConsoleOutputCP.Call()
 	if r1 == 0 {