Merge pull request #559 from rackerjoe/master

revert memcached cookbook to one that is not broken upstream for RHEL/CentOS
Auto Updating monitoring submodule
Auto Updating horizon submodule
Auto Updating rsyslog submodule
Auto Updating mysql submodule
Auto Updating yum submodule
Update roles to include keepalive-timeout recipe

This recipe needs to be included on nodes that will consume
rabbitmq or mysql so we can terminate the TCP connections
on failover