add auto tag bumper
add auto tag bumper

chrishultin/redis-single,brint/redis-single,pratikmallya/redis-single,chrishultin/redis-single,rackspace-orchestration-templates/redis-single,pratikmallya/redis-single,chrishultin/redis-single,brint/redis-single,rackspace-orchestration-templates/redis-single,rackspace-orchestration-templates/redis-single,pratikmallya/redis-single,chrishultin/redis-single,brint/redis-single,pratikmallya/redis-single,rackspace-orchestration-templates/redis-single,brint/redis-single