This implements #106.
* Added require-tree which is based off of @ricardobeat's module. Fully async.
* I've moved active theme and active directory to settings from config as well.
* Modified settings.hbs and settings.js to display the raw json under Settings/Appearance
Added & removed many properties as required & fixed tests
Updated & also cleaned up the fixtures, inc images
Added order by published to the findPage query
- Created Role model
- Created Permission model
- Linked Users->Roles with a belongsToMany relationship
- Linked Permissions to Users and Roles with a belongsToMany relationship
- Created permissions helper with functions for initializing and
checking permissions (canThis)
- Unit tests for lots of things
