Update bower.json

I believe you should be using only the not minified file versions in bower.js's main tag.

From https://github.com/bower/bower/issues/393

> The primary acting files necessary to use your package. While Bower does not directly use these files, they are listed with the commands bower list map and bower list --sources, so they can be used by build tools. Do not include minified files. Files should not be versioned (Bad: package.1.1.0.js; Good: package.js).