…de SC.ButtonView

…container views inside of it, rather than just its own direct descendant

…fault styles

… make it easier to subclass

…ccurred within it

…ctionality should be fine)

…ing for class names in tests work

…rough SC.PolymorphicSingleAttribute

…ar too fast). -- fix courtesy stillmotion

…ssue where going back to a view that had already been scrolled did not display its correct position

…class names, e.g., if controlsHidden changed to false, the controls-hidden class would not be removed

…nderer