Helabs/pah — pull request #216 by aliismayilov (2014-02-13 01:47:03+00:00)
Title: Use database cleaner

I suggest to use ```database_cleaner``` gem, because ```rake spec``` purges database, but ```rspec``` command doesn't.
Also I confirm that surrounding ```FactoryGirl.lint``` with database_cleaner, keeps database clean (issue #215).