Docker-commit: Lots of stuff

You need to be logged in to be able to search for videos.
Also includes other goodies..

- Adds Bootstrap 3
- Adds jQuery 2.0.3
- Adds custom fonts
- Adds helpers: Page and Authentication
- Adds model: Search
- Switch to haml
- Switch to youtube_it
- Adds rspec

- Adds a fixed top navbar
- Navbar now includes search bar if logged in
- Use bootstrap table