Fixes #4617.  PRoxy commit for haysmark. Added a Previous/More Choices test to the ComboBox _onBlur so that the user doesn't accidentally select those options from the menu.   Optimized placement of some setDisplayedValue calls in ComboBox.
Fixes #4617.  PRoxy commit for haysmark.
Added a Previous/More Choices test to the ComboBox _onBlur so that the user doesn't accidentally select those options from the menu.  
Optimized placement of some setDisplayedValue calls in ComboBox.

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@10732 560b804f-0ae3-0310-86f3-f6aa0a117693

redaktor/deliteful