Add or change some options in manual pages.
Features were changed in previous commits, but docs not done at same time. Also update old ChangeLog entry to mention the removed or changed options specifically. This was for a previous release and nobody noticed, but I am doing this for an example for future release notes. git-svn-id: svn://bind10.isc.org/svn/bind10/trunk@2693 e5f2f494-b856-4b98-b285-d166d9295462