Use $firebase service
Use orderByPriority filter
Fix total computing
Refactor add expenses method
Upgrade AngularJs to 1.2.8
Fix expenses sorting
Create home page
Display home page buttons
Display larger buttons
Create loading page
Redirect from authentification events
Sign in
Sign out
Remove useless LoadingController
Create firebase rules
Inject user specific data
Refactor authentication initialization
Bind from authentification events
Fire login event on controller load
Fix cancel buttons background