started massive re-write using ng-resource and ui-routing for better CRUD and nesting routes

A different approach which I think better mirrors the routes and crud actions from the API.  Rather than $http used directly from controllers for AJAX, $resource is now made use to streamline CRUD actions.  Nested Routes are achieved now through UI-router's states.

Boards index, and show done, as well as Message index, to demonstrate the difference.  Other actions to come.