start of a roles system and experiments with ember.js
the roles controller
Merge branch 'master' into feature/roles
removed ember js - switching back to a non ajax version
as before
basic system for viewing user role asignments, deleting assignments and creating new ones

#61
added a display name to the member roles
fixed the permissions on the role route
Merge branch 'master' into feature/roles
removed old methods
user dropdown can be set to admins only
prevent trustees from being removed from the admin group
only show active members on the roles page
only prevent deletion of admins if they are avtive
make the new role title field fillable
new storage role and updated the storage controller and page to use the new rule
Merge branch 'master' into feature/roles
Merge branch 'master' into feature/roles
text case fix
intro text