Fixed rendering bug with buttons.
Fixed blurry corners, e.g. for UISegmentedControl
Merge pull request #10 from dlinsin/master

Fixed blurry corners, e.g. for UISegmentedControl
Merge pull request #9 from weiran/master

Fixed rendering bug with buttons.
change type of variable 'section' from double to NSInteger
Merge pull request #11 from JohnnyDeng/master

change type of variable 'section' from double to NSInteger