ViewManager

[wesleyhu]

The method of removeAll() has bug, it can't clear all child.
for each(var s:DisplayObject in stack)
{
removeView(s, dispose);
}
Dynamic delete element of stack in for-each，it will be skip some element.

The correct approach should be：
for(var i:int = stack.length - 1; i >= 0; i--){
removeView(stack[i], dispose)
}