Facebook integration.
Updated seed files and auth process.
Deleted outdated Event/User join table.
Added Attendance model for event/user relationship.
Attending/Unattending Events model & controller added.
Attendance count added to Event list and show.
Uniqueness of Event/User attendance relationship enforced with index.
Semantic changes.
Merge branch 'billy2' into TEST
Merge branch 'TEST' of https://github.com/bceskavich/compas into TEST

Conflicts:
	compas/app/views/events/index.html.erb