owncloud/core — pull request #12892 by Raydiation (2014-12-16 19:35:33+00:00)
Title: Add isAdmin and isInGroup methods for the group manager

To fix #12851

This is apparently also hit by #12888

@icewind1991 @LukasReschke @arkascha @MorrisJobke @DeepDiver1975 @nickvergessen please review