fixes #5990 - add a heading, and style the dom nodes before turning them into contentpanes, eliminating  some sort of race condition?  tab containers show up locally, just not when using nightly. 
fixes #5990 - add a heading, and style the dom nodes before turning them into contentpanes, eliminating 
some sort of race condition?  tab containers show up locally, just not when using nightly. 



git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@12707 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful