ADD: symmetric functional now supported in-plane transformations


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5309 42a5c34f-2066-0410-bec5-ba365beb4995
DOC


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5310 42a5c34f-2066-0410-bec5-ba365beb4995
ADD: two more "special" DOFs


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5311 42a5c34f-2066-0410-bec5-ba365beb4995