Wiki caching

[Mike McGrath]

Just an FYI, for the release the infrastructure team has enabled a pretty
agressive caching scheme for the wiki.  What does this mean?  If you make
changes to a wiki page they may not show up for up to an hour.  We do this
every release and its usually not a problem.  We'll disable this caching
the day after the release.  Happy wiking.

-Mike