Sunday Fun Day

- Add capybara.
- Configure capybara-webkit.
- Add Jasmine.
- Add Backbone.
- Built out remote forms on index.
- Validations on StoryStory.
Add StoryOrder and StoryOrderPosition models.
Add StoryOrderPositionsController for reording stories.
Scope everything to a default StoryOrder.
Update Gems.
Draggable stories on index.
Merge pull request #1 from benastan/sunday_fun_day

Sunday fun day