Usablity:

In text editor, the CTRL+F find now opens property region (or keeps it) and
activates the search button for input.

That's already nice! But next step should be to do a search on exit of 
the button (or while typing). That's stuff I need Campbell to help with though.

Notes:
- Probably Py api for property buttons could get an "operator=" arg?
- The warning menu "not found" should go away
- I also suggest to make "wrap" search default for new editors




git-svn-id: https://svn.blender.org/svnroot/bf-blender/trunk/blender@55549 954f8c5b-7b00-dc11-b283-0030488c597c