Added bower

It'd be great to use bower to get this package —

Bower uses tags, so after accepting this PR, it'd be great if you could ensure that when you release new versions of this library (git tag), that you also update the corresponding version into bower.json

Lemme know if you have any questions, I'll do my best to answer.

ps. This package isn't yet added to the bower repository, but I can handle that for you if you'd like.