F-Bomb insight copy fix: Don't talk about -X fewer fbombs.  Math.
* Also temporarily regenerate insights to fix copy.
F-Bomb insight: don't regenerate
Get updated_time from facebook and store in tu_instances_facebook.profile_update

Adds instances_facebook table.
Adds FacebookInstanceMySQLDAO.
Adds FacebookInstance.
Adds lots of tests.
Updates crawler to store the updated_time for a given running instance.
Facebook Profile Prompt- reminds you to update your profile.