Fix for bug 14461: QA contact is no longer required.  You can still leave it blank in editing and creating components if you
want, even if it's enabled now.  This is consistant with the behavior of this field everywhere else in Bugzilla now.
Eventually this will be a per-product setting whether to enforce having one or not.
Patch by Matthew Tuck <matty@chariot.net.au>
r= justdave x 2