ADDED Notification representer
ADDED notifications link in User representer
ADDED Notification model and respective model associations
ADDED /users/:user/notifications route
UPDATE trimmed gem dependencies and upped roar's version
adding some helpful methods to the Notification model
added error in case a user is not found that matches the name
fiddling with the User representer
added needed links to the Notification representer
autoload all the stuffs!
updated gem dependencies
ahum. gotta find a better way to not stuff production code with this sort o' thing.