MarkUsProject/Markus — pull request #1685 by zhangsu (2014-08-19 21:34:01+00:00)
Title: Fix flaky user name uniqueness in specs

Apparently Faker doesn't generate unique user names in a sequence of
calls and I sometimes get an uniquess violation error because of this.
This can be fixed by using FactoryGirl's sequence.

Tested:
- rspec