Change order of region destroy to avoid FE_region to region callbacks during destruction. Issue 3425.
Change order of region destroy to avoid FE_region to region callbacks during destruction. Issue 3425.

git-svn-id: b9baf8c2d14a71b3ba9c27a102eb6e792fc13348@10501 3c1deb5b-d424-0410-962d-aba41a686d42

OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,OpenCMISS/zinc,hsorby/zinc,hsorby/zinc,OpenCMISS/zinc