firefox downgrade on FC5

[Ian Burrell]

I just did an rsync of my local FC5 updates mirror and noticed that it
downloaded firefox-0.10.0-1.0PR1.5.i386.rpm and removed the other
firefox packages.  It looks like an ancient firefox package somehow
got into the FC5 updates directory.

This isn't just a mirror problem; it is at
http://download.fedora.redhat.com/pub/fedora/linux/core/updates/5/i386/firefox-0.10.0-1.0PR1.5.i386.rpm.

 - Ian