rails/globalid — pull request #37 by kaspth (2014-08-27 08:05:59+00:00)
Title: Encode expiration as iso8601 in UTC timezone.

Based on @chancancode's comment here: https://github.com/rails/globalid/commit/39ab83a43a64b339739c6e8c7ab24bb1325204ed#commitcomment-7529613

cc @jeremy @xuchu