memcache 7.x-1.0-rc3

This is the third and hopefully final release candidate before a stable 7.x-1.0 release.

Changes since 7.x-1.0-rc2:

• #1396866 by greggles: Fixed remove unnecessary ! placeholder - switch to @.
• #1394866Move memcache-session.inc to unstable folder.
• #1394762 by catch: use the testing profile.
• #1219176 by psynaptic: Fixed Error running drush when memcache extension is missing.
• #1364678 by tcmug: Fixed Patched undefined function dmemcache_object().
• #1344036 by das-peter, Berdir: Fix cache clear fails when using wildcards - strange behavior with wildcard_valid().

Important
Session handling has not been fully ported to 7.x yet, and should not be used in production. This has been made more obvious by moving the file to unstable/memcache.inc so it is out of the way. If you have been using memcache-session.inc and get an error about the file not being available, or a WSOD, then you should comment the line $conf['session_inc'] in settings.php and use core session handling or a different session backend for now.

If you'd like to help get stable session handling into a later point release of 7.x-1.x, then please test and/or help with the following issues:

#656838: [META] Port sessions to D7
#1362316: $user->data does not get unserialized
#1131986: Session handling fails on multiple switches between http / https (this is a core bug, but it'd be good to see this fixed before tackling the same issue in memcache).