OtherSVNBackedWikis - from r972 to r973

There are a couple offew other SVN backed wikis.

* svnwiki (active, scheme, http://wiki.freaks-unidos.net/svnwiki/)
* subwiki (defunct?, python, http://subwiki.tigris.org/)

* ikiwiki ('wiki compiler', svn or git, http://ikiwiki.info/)

The first two
got the good names. In fact, reviki was called svnwiki for a while as I failed to find svnwiki until I was a good way into reviki.