[NEW]Added new wiki argument variables (currentVersion, currentVersionApprover, currentVersionApproval, currentVersionApproved) for real cases using Tiki to support ISO9001 documentation systems, where flagged revisions is enabled and each document version needs to have the ability to display who approved that document version (even in cases when that is not the latest approved or edited version). Thanks Bruno (user cr0vax) for your current feedback through the t.o forums. Re: http://dev.tiki.org/Flagged+revisions#ISO9001

git-svn-id: file:///var/local/code.tiki.org/tikisvn/trunk@53372 b456876b-0849-0410-b77d-98878d47e9d5