Add Event.

Event uses state_machine to handle state changes. Testing with minitest.
Remove folders not used in test folder.
Add EventService.
Start implementing EventService and EventbriteEventService.
Stand proud.
Merge branch 'master' into add-events

* master:
  Ignore .env.
Add .env.example.
Ensure coffeescript, sass, and compass all work.
Rename README.rdoc to README.md.
Update README with correct instructions.
Add pg gem to production group.
Move pg gem out of production group and vendor it.
Merge branch 'master' into add-events

* master:
  Move pg gem out of production group and vendor it.
  Add pg gem to production group.
  Update README with correct instructions.
  Rename README.rdoc to README.md.
  Ensure coffeescript, sass, and compass all work.
  Add .env.example.

Conflicts:
	Gemfile
	Gemfile.lock
Refactored FakeEventbriteClient and added #event_get.
Added EventbriteHelper.formatted_date.
Added Event#previous_event to grab last event.
Scheduling an event now copies the event on Eventbrite and modifies it.
Added EventbriteEventService#open_registration
Add EventsController, views, routes, and tests.
Remove HomeController.