Item12952: phew! decoupled the .spec model building from the UI. That was hugely harder than it needed to be. Next step is to break down the checkers into UI and non-UI parts, so that core checker capability exists but doesn't assume any specific UI implementation.

git-svn-id: http://svn.foswiki.org/trunk/core@17840 0b4bb1d4-4e5a-0410-9cc4-b2b747904278