Check if Scrollview should wrap children in ui/translate

[phronmophobic]

Logically, scrollview offsets the origin of all its children. This offset is applied explicitly for each of its event handlers. However, if a new event was created, it would have to be special cased for scrollview. Other helpers built children and origin are also probably subtly wrong.

I'm not 100% sure it's broken, but if it is, I think it could be fixed by wrapping children in a translate call.