MediaWiki 1.9.0rc1 available for testing

I've made a snapshot release candidate from 1.9 branch; this is a chance
to get a few more possible installation/upgrade regressions tested and
fixed.

A more widely announced 'final' 1.9.0 release will come after another
day or two.

Full release notes:
http://svn.wikimedia.org/svnroot/mediawiki/tags/REL1_9_0RC1/phase3/RELEASE-NOTES

Download from:
http://sourceforge.net/project/showfiles.php?group_id=34373&package_id=93103

MD5 checksum: 55eb83d15a95db85ed002aace93a18d9
SHA-1 checksum: 1ee7d5ddc5b356288f7bdaa9b5800cb89a461216

-- brion vibber (brion @ pobox.com / brion @ wikimedia.org)