Item12494: break RCS out of the core

git-svn-id: http://svn.foswiki.org/trunk@16713 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12494: mods for core changes since RCS was moved out

git-svn-id: http://svn.foswiki.org/trunk@16714 0b4bb1d4-4e5a-0410-9cc4-b2b747904278