add .ruby-version and .ruby-gemset to .gitignore
add teabag, a headless javascript testing suite
remove unnecessary js files from assets
add coffeeScript utility method for better namespaced classes
clean up bootstrap file, move tab_navigation into its own testable object
add javascript unit test coverage to Codetriage.TabNavigation
Merge pull request #137 from mwitek/javascript-test-integration

Headless javascript test integration and javascript cleanup