Update views on rotation

[tovkal]

Instead of calling setupViews on draw:rect, calling it in layoutSubviews: where the new frame is already set, so scale can be recalculated with the new width.

The only problem I see (specially when enabling Slow animations on the simulator) is that setupViews ends before the rotation animation starts, so you can see the labels with the new sizes before the views rotate. I tried wrapping setupViews inside an animation block without effect.

draw:rect will be called by UIKit on rotation when setting view.contentMode = UIViewContentModeRedraw (default value is scaleToFill), but I've read that implementing draw:rect reduces performance because a graphic context is created to be used in the method.