Adds support for Bower

I've added a `bower.json` file and registered my fork to test that everything is working correctly.

If this sounds good, let me know and I will unregister my version immediately so your details can be set correctly.

The `bower.json` file will then just need updating slightly to match your details, you'd then need to release `v1.6.1` and re-register the package under your name.

Register the package with bower.

```
bower register jquery_example git@github.com:mudge/jquery_example.git
```