Suspend users inactive since n days
Adding rake task
Modifying date format in suspension reason
Storing suspension threshold as a duration

moving the constant under User and not allowing
it to be overriden from env as we don't need that.
Grammar fixes
Correcting tests
Test that count of suspended users is returned
Merge pull request #156 from alphagov/134-scheduled-task-to-suspend-users

Adding task to suspend users