Remove useless controllers and add all the logic on CobaltViewController
Merge branch '0.3' of https://github.com/cobaltians/cobalt into 0.3

Conflicts:
	samples/HelloWorld/IOS/Cobalt/www/index.html
	sources/iOS/Cobalt/Cobalt.xcodeproj/project.pbxproj
	sources/iOS/Cobalt/Cobalt/Controllers/CobaltViewController.h
	sources/iOS/Cobalt/Cobalt/Controllers/CobaltViewController.m
	sources/iOS/Cobalt/Cobalt/Views/CobaltToast.h
	sources/iOS/Cobalt/Cobalt/Views/CobaltToast.m
fix conflicts