Added bower ignore and updated directive dependency annotation

I registered this project with Bower but it is currently pulling down the entire project including the samples, source and testing files. It would be preferable if only the dist/ directory and license were included when installing via Bower.

Also, the minified version is currently breaking due to the dependencies not being explicitly specified. I updated the source file so that next time the project is minified it won't break. Alternatively, consider using ng-min (see https://github.com/btford/ngmin) for use with Grunt.