Compass default layout

Thanks for making this, here's a pull request for a couple things:

1. Changed folder structure to use the default compass folders (`javascript` instead of `js`)
2. Added `.gitignore` for `*.gem`
3. Fixed a typo in `manifest.rb` where .tts should have been .ttf
4. Removed `config.rb` from `manifest.rb` to make it easier to add to existing projects
5. Removed .html files