We finally got APR working well enough to support buffered reading

We finally got APR working well enough to support buffered reading
of .var files, so the .var file issue is gone.

The brokenness of the threaded MPM on FreeBSD is a FreeBSD issue, not
an Apache issue, as far as anyone can tell.  I don't think this should
be in the STATUS file at all, unless somebody thinks we should issue a
big honking warning from configure if somebody tries to enable threaded.

git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/trunk@90954 13f79535-47bb-0310-9956-ffa450edef68