Added global messaging system.
Added some JS for a Success message.

This will be used later in the json output and success messages.
Added an Admin area and User Management area.

I added the views/controllers/etc for an admin namespace on the various
things that will go inside of it.  In this case, and for right now, it
is only the user management methods.
Added concerns folder for future usage.
Moved shared items to a shared folder as templates.
Removed default .js file, as we are using coffeescript.