Ajaxified messaging system.
Inbox msg marked read via ajax.
Ajaxified user search.
Ajaxified friend request functionality.
Revert to 357aa79cd5bfe043a3d5d74b954252722d3b1960
Added friend deleting functions.
Merge branch 'frontend' of github.com:adi3/quizzically into frontend2

Conflicts:
	build/classes/quizzically/models/User.class
	build/classes/quizzically/servlets/ChangePassword.class
	build/classes/quizzically/servlets/Friends.class
	build/classes/quizzically/servlets/Messages.class
	build/classes/quizzically/servlets/SearchUsers.class
	build/classes/quizzically/test/UserTest.class
	src/quizzically/servlets/api/Quiz.java