Starts adding enforcement of 1 vote per user per score
Adds ability to undo/toggle vote
Refactors code for voting
Adds favicon
Adds HackR shoutout banner (GIMP project file)
Updates styles
Moves some dependencies; adds Momentjs
Formats timestamp via Momentjs
Changes notification for no auth
Adds user auth tracking across controllers
Fixes client-side auth code
Updates layouts and views