Add in Angular dependency

Pull in Angular from rails-asserts.org, add Angular to sprockets.
Default Angular folder layout and app creation

Made the Angular ng-app called swift.
Merge pull request #4 from amaltson/add-angular

Add angular
Cloud Foundry deployment manifest

Created a CF deployment manifest.

Reference:
http://pivotallabs.com/deploying-jruby-rails-application-cloud-foundry/