Item12865: control revinfo using DISPLAYREVISIONINFO pref setting

also:
- improvements to RenderSimpleTopicCreator (not simple anymore, but hey)
- improvements to RenderTopicsOfType allowing access to some more jqgrid features



git-svn-id: http://svn.foswiki.org/trunk/WikiWorkbenchContrib@17610 0b4bb1d4-4e5a-0410-9cc4-b2b747904278