Item9693: Add some missing documentation

TML and WikiText are used here and there but are not really defined
anywhere.  Add topics to define them so that they'll link when used.

Also ACRONYM had an extraneous STOPINCLUDE macro without any
corresponding START.

git-svn-id: http://svn.foswiki.org/trunk@17516 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12839: Update AntiWikiSpamPlugin rest

 - Change them to meet new security recommendations
 - Change GET to POST for the forceUpdate button
 - Require Admin for forceUpdate

git-svn-id: http://svn.foswiki.org/trunk@17517 0b4bb1d4-4e5a-0410-9cc4-b2b747904278