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