dont name our stuff with 'ng-', dont use rails notice until ive figured out how to handle it better

tried making the app controller move the rails notice to #notice and delete it on $locationChangeSuccess, but this doesnt work for the login success msg (the one case we have a rails notice now) because the $locationChangeSuccess callback is fired twice during this for some reason, so it's moved once successfully and then deletd before the user sees it
added basic error handling to controllers

will need to think about a more robust solution down the road
ability to accept/deny fights to frontend