Add support for shadows to View, Control, Button, Label and TextField. Refactored border rendering.
Fix rounded button rendering
Merge pull request #74 from aleph7/shadows

Shadow support
Used setMasksToBounds instead of adding a rounded corner to the gradient layer in UIButton

The previous approach unfortunately doesn't work for background images
Replaced a tab with spaces
Alphabetized content-insets for UIButton in the README
Alphabetized the shadow-* properties in the README and replaced shadow-offset's Size type with Offset
Merge pull request #77 from christophercotton/ios5changes

Making the demo app work better on iOS 5.1 for issue #64