Fixes #7349: Allow ContentPane.setContent() to take a widget.  !strict
Fixes #7349: Allow ContentPane.setContent() to take a widget.  !strict

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@14681 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful