Bower.json - main should not include both min and non-minified resources

Created by: cgross

The main property of the bower.json is used by automated tools (like https://github.com/cgross/bowinst). Right now, the bower.json for BS3 includes both min-ed and non-min-ed references. So automated tools would create <link>/<script> for all 4.

I suggest only the non-minified versions be included in the bower.json.