Added bower.js file

This repo has already been registered to bower. Using the name requirejs-domready I've added this file using that name and the current version number.
The key point is that I've specified a "main" file. Allowing easier integration, and allows me to use other tools like this https://github.com/yeoman/grunt-bower-requirejs
Merge remote-tracking branch 'remotes/thomaswelton/master'