finished the quiz ui
fix an error in this file
create navi in quizUI
update: navigation in QuizUI
Merge branch 'feature-quizUI' into develop
Merge branch 'develop' of https://github.com/balloonsys/UMO into develop

Conflicts:
	UMO.xcodeproj/project.pbxproj
	UMO/Service/BSURL.h