RollbackModification
What (summary)
Create a special usergroup for RC patrollers which includes the rollback tool (and nothing else).
Why this is important
This will assist RC patrollers - who aren't admins - with their work and give them a much-needed tool to make the job quicker.
DoneDone
Steps to get to DoneDone
There's instructions in http://www.mediawiki.org/wiki/Help:User_rights.
This involves adding one line to the wiki's LocalSettings.php.
Something like:
$wgGroupPermissions['patroller']['rollback'] = true;
(A new group can be defined using the same one-line directive)