update html5boilerplate, bower_components, use_strict, etc.

* Include HTML5 Boilerplate and update index.html to be consistent with the original angular-seed app
* Move `bower_components` into the `/app` folder
* Move `use strict;` statements to top of JS files so they apply to the entire file, not just their functions
* Bump versions on `karma-requirejs` and `karma-coffee-preprocessor`
* Cleaned up `.gitignore` files
* All unit tests and end-to-end tests execute successfully