Cleans up scroll view tests further.
Reverses the previous: Fixes the case where child views are created as part of the parent view (thus shortcutting the statechart doAdopt call). This fixes these child views so that they also check for resize when adopted.
This shouldn't be necessary and results in an extra frame change notification, which we don't want.
Fixes a problem with SC.ScrollView that required an additional frame change notification to work previously, but seems to be just improper initialization of the view.
Tidies SC.ScrollView a bit.