Switch to normalize.css for MIT

Although there's nothing wrong with distributing reset.css, as it's under a BSD license:
https://github.com/myplanetdigital/neompd/blob/master/src/files/styles/reset.css
http://yuilibrary.com/license/

I'd recommend switching [normalize.css](http://github.com/necolas/normalize.css), as it's under an MIT license, which is a bit more permissive. Could put together an easy PR for this if desired. It's also available via bower.