Update docs for developers
Removed twitter bootstrat and haml dependencies

Closes #7
Merge branch 'master' of github.com:smathieu/prosperity
Merge pull request #11 from rainforestapp/feature/update-docs

Update docs for developers
Renamed options => option
Merge branch 'master' of github.com:smathieu/prosperity
Removed unused migration file
Merge branch 'master' into export

Conflicts:
	app/views/prosperity/metrics/show.html.haml