update launch image

* remove navigation bar on image
try to load image from asset
upgrade TOWebViewController to 2.0.14
remove no use white space and "
Merge remote-tracking branch Superbil/hackfoldr-iOS/master

Conflicts:
	hackfoldr-iOS.xcodeproj/project.pbxproj

Signed-off-by: Superbil <superbil@gmail.com>