Add support for changing User id (Google Account email) in User Profile Developer view. Now user profile developer edit view includes hidden key_name field. Fix typo in user/profile.py. Show former user ids in lookup and edit User Profile Developer views.
Patch by: Pawel Solyga
Reviewed by: to-be-reviewed
""" models.py (even empty) currently required by the runtests.py to enable unit tests """