Redis upgrade

[x] ey recipes upload -e CLOUD_ENV         # upload the latest recipes, including the redis upgrade

[x] ey web disable -e CLOUD_ENV            # take the site down

[x] ey rebuild -e CLOUD_ENV                # run all of EYs recipes (installs a gem)
                                           # and our custom recipes (install redis)

[x] sudo monit stop redis on redisslave    # stop redis 1.2.2, use ps to ensure it has exited
[x] sudo monit stop redis on redismaster

[x] sudo monit start redis on redismaster  # start redis 2.0.1. Use /data/redis/redis.log
[x] sudo monit start redis redisslave      # to ensure it is ready to accept connections

[x] rake deploy:production                 # deploy master, this will bump the redis-rb client
                                           # this will also restart the ruby processes that need to 
                                           # reconnect to redis

ey web enable -e CLOUD_ENV                 # bring the site up