CHG: prepare for 3.0.0 release


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5125 42a5c34f-2066-0410-bec5-ba365beb4995
DOC


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5126 42a5c34f-2066-0410-bec5-ba365beb4995
DOC


git-svn-id: https://www.nitrc.org/svn/cmtk/trunk@5127 42a5c34f-2066-0410-bec5-ba365beb4995