Squashed commit of the following:
Squashed commit of the following:

commit c62a1918b12238bbc87e7e4703962294dcb519f6
Author: Lars Butler <Lars.Butler@gmail.com>
Date:   Sat Dec 25 11:34:31 2010 +0100

    Changed memcached references to redis-server


Former-commit-id: 7b019f270895173793c71d76db99f7b060690793
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine