Added bower support

selectivizr is already IN the bower repository — accepting this pull request will make users of bower & selectivizr happy. 

Bower uses tags, so as per #67, it'd be great if you could

`git tag 1.0.3` 

After accepting this pull request (or use the new github releases feature).

Lemme know if you have any questions, I'll do my best to answer.

This will close Ref: #62 when merged.