FIX: check sscanf return values


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4959 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: catch exceptions


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4960 42a5c34f-2066-0410-bec5-ba365beb4995
FIX: catch all exceptions


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@4961 42a5c34f-2066-0410-bec5-ba365beb4995