userInfo(username:username, role:role) is saved in $cookieStore.get('currentUser'), not $rootScope.currentUser
add logout function that refreshes the cookie to default anonymous user
Merge branch 'eugene_serverside_auth' of https://github.com/XYZMedia/shortProject into eugene_serverside_auth

Conflicts:
	app/config.js
	app/modules/articles/allarticlescontroller.js
	backend/requestHandler.js