Merge pull request #21 from nowk/master

4.0 GPA and other stuff
Convert to haml
Nest routes
Update text on goal form
Convert to haml
#15 Migrations
#15 Acceptance Tests
#15 Prize unit tests
Fix brittle link selector
Add travis.yml
Re-configure Travis
Only build on Travis for 2.1.2
Remove old user factory
Minimum days migration
#18 Acceptance and unit tests
Remove GoalsResponder