Added methods for opting out of scheduled styling when removing style classes.
Added support for using properties shadowColor, shadowOffset, shadowOpacity and shadowRadius on UIView.
Performance enhancements.
Added support for setting the frame property using the size retuned by `-[UIView sizeThatFits]`.  The format for this is: `sizeToFit(maxWidth, maxHeight)`, and can be used as an alternative to using `size(width, height)`.
Minor unit test fix.
Pod and project file fixes.
Preparing for version 0.9.12.