Add BitesController

* Add test, assets, view, and route
Add .bowerrc file
Add bower.json file
Add bootstrap and jQuery
Add bootstrap CSS/JS
Remove turbolinks
Remove turbolinks
Use bootstrap template for app layout
Wrap layout body in container div
Make bites form
Add pseudocode BitesController#create
Clean up Gemfile
Remove jquery-rails
Add jquery-ujs from bower
More Gemfile cleanup

* Double-quote everything
Add omniauth and omniauth-twitter gems
Even more Gemfile cleanup

* Move sdoc and spring into group blocks
Add dotenv gem for development
Add omniauth initializer
Add .env to gitignore