Adding Harbinger gem reference
Adding harbinger migrations

$ rake harbinger:install:migrations
Updating schema from harbinger migrations

$ rake db:migrate
Modifying migrations to reflect errors encountered
Tying in Harbinger gem for exception handling

DLTP-123
Appeasing some of the hound
Merge pull request #102 from ndlib/dltp-123-exception-handling

Dltp 123 exception handling