Added basic controller
Added input bindings as well as simple click actions and ng-show / ng-hide based on logged in status
Added basic login service with  broadcast for events
Added dummy chat object and sendMessage method as well as view bindings
Added ng-repeat to repeate over dummy messages and bindings for message structure
Added basic firebase chat ref and 3-way binding to
Added comment to constant
Added connection info ref and user ref for presence updates
Added repeate and bindings for user status list