Item12699: Add unit test

Verify that the session for the deleted user has been removed.

git-svn-id: http://svn.foswiki.org/trunk@17540 0b4bb1d4-4e5a-0410-9cc4-b2b747904278
Item12699: Update unit test for AntiWikiSpamPlugin

Needed to add another IP address to match a spam domain
also check for cgisess removal.

git-svn-id: http://svn.foswiki.org/trunk@17541 0b4bb1d4-4e5a-0410-9cc4-b2b747904278