Log Message:
Update rt-mysql and rt-pgsql to rt-mysql-2.0.15 and rt-pgsql-2.0.15
Various changes from 2.0.13, most obvious of which appears to be that
RT no longer causes problems with the HTML::Mason in pkgsrc.
Also add a note as to how to get an Apache configuration which does not
ignore POSTs. Still some configuration issues, but we are now _nearly_
working without some small hacking, as opposed to completely broken.