Made indentations consistent.
Sometimes 4 spaces were used. Other times tabs were used. Tabs are now used for all indentations.
Improved iOS 5 compatibility in restoreContentoffset:.
Added check for UIView.translatesAutoresizingMaskIntoConstraints, which was added in iOS 6.
Fixed scrolling to bottom in landscape.
The updateSizingWithDelta: method uses [UIScreen mainScreen].bounds to get the height of the screen. However, the bounds are always for portrait orientation. A check for landscape has been added before calculating the new frame height.