FIX: turn off forced assertions


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4941 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: initialize gdold variable


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4942 42a5c34f-2066-0410-bec5-ba365beb4995