FIX: exception handling (Coverity defect)


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4943 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: proper exception handling


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4944 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: removed obsolete class member fields


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4945 42a5c34f-2066-0410-bec5-ba365beb4995