Handle case where addChild() is called after startup() but before initialize resize() call, which is for some reason happening with ExpandoPane.  Refs #8269 but doesn't completely fix ExpandoPane.  !strict.
Handle case where addChild() is called after startup() but before initialize resize() call, which is for some reason happening with ExpandoPane.  Refs #8269 but doesn't completely fix ExpandoPane.  !strict.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@16497 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful