Fixed stuff.

Release v1.0.1.

Fixed Angular Bower dependency version.
Added Grunt tasks (karma tests, uglify, jshint, banner).
  - Tests are now exclusively executed through `grunt test`, removed `run-tests.sh`.
  - Tests now uses files located in `bower_components` instead of `test/lib`, which has been removed. @paulsmith could you check so all necessary Angular files are included in `test/karma.conf.js`?

Restructured folder hierarchy (added src/ and dist/ folders for example).
Made it possible to download minified version directly, without using Bower (see the readme).

As of now, I've created a bower package called `wb-angular-slugify` which contains these changes (v1.0.1).