bump docker cookbook rev
bump docker cookbook rev

atxwebs/docker,kvchampa/rackspace-docker,rackspace-orchestration-templates/docker,rackspace-orchestration-templates/docker,kvchampa/rackspace-docker,usljimrose/docker,kvchampa/rackspace-docker,usljimrose/docker,pratikmallya/docker,atxwebs/docker,pratikmallya/docker,rackspace-orchestration-templates/docker,usljimrose/docker,kvchampa/rackspace-docker,atxwebs/docker,pratikmallya/docker,atxwebs/docker,pratikmallya/docker,rackspace-orchestration-templates/docker,usljimrose/docker