[cdwg] Wiki Update

[Christopher J. Morrone]

I was able to get access to OpenSFS's dreamhost account.  I updated the 
Mediawiki instance at wiki.opensfs.org, and things seem to be working ok.

But DON'T USE IT YET.

It seems to me that the better place for the wiki is to root it at 
opensfs.org/wiki, and get rid of wiki.opensfs.org (I'd probably put a 
redirect in place).

So here's the situation: if we want something now, Mediawiki will work. 
  If we want Confluence, we're going to need a volunteer to champion 
that effort: get a license, get a server, do the setup, configuration, 
and general sysadmin work.  Perhaps change opensfs to a virtual private 
server and admin that (although now I am beginning to see that we can 
actually do quite a bit within the normal "shared hosting" account that 
we have on Dreamhost).

What do people want?

Chris