Removed "aggregated" assets in favor of managing everything with assetma...

I made an update to assetmanager ([here](https://github.com/ReedD/node-assetmanager/commit/3cac4fb3b447c1d942ed2609c2ee47eae964baaf)) that supports regular expressions for the webroot. With this feature we can now remove `aggregated.css` and `aggregated.js` so that everything is managed with assetmanager.