Proper asynchronous script loading or concat files

[gocom]

Currently this thing tries to use yepnope.js. But, goes just to the middle way;

• Some scripts are still loaded synchronously, e.g. jQuery.
• It loads all files once before executing.
• Some files are loaded after certain events: load, then execute on the event you want.

Todo;

• Try concat'ing files. Basically put all JavaScript to a single file if possible.
• Replace yepnope.js with Require.js.