Update vendoring + fix issue with timestamps being added to log

As per the vendoring here:
https://github.com/kubernetes-incubator/kompose/commit/e9544ca89477ed76bd75f1160f9a89686f75e95d
for some odd issue, text_formatter.go in the logrus package was updated
to an older file.

This commit updates the vendoring as well as specifies a specific
version for logrus to be used.

Closes + fixes
https://github.com/kubernetes-incubator/kompose/issues/532

vendor/github.com/Sirupsen/logrus/exported.go

@@ -48,6 +48,11 @@ func AddHook(hook Hook) {
 	std.Hooks.Add(hook)
 }
 
+// WithError creates an entry from the standard logger and adds an error to it, using the value defined in ErrorKey as key.
+func WithError(err error) *Entry {
+	return std.WithField(ErrorKey, err)
+}
+
 // WithField creates an entry from the standard logger and adds a field to
 // it. If you want multiple fields, use `WithFields`.
 //