Add watchdog to Galaxy's virtualenv.
Add watchdog to Galaxy's virtualenv.

chambm/docker-galaxy-stable,kellrott/docker-galaxy-stable,erasche/docker-galaxy-stable,afgane/docker-galaxy-stable,chambm/docker-galaxy-stable,kellrott/docker-galaxy-stable,kellrott/docker-galaxy-stable,chambm/docker-galaxy-stable,bgruening/docker-galaxy-stable,bgruening/docker-galaxy-stable,shiltemann/docker-galaxy-stable,bgruening/docker-galaxy-stable,erasche/docker-galaxy-stable,afgane/docker-galaxy-stable,shiltemann/docker-galaxy-stable,afgane/docker-galaxy-stable,shiltemann/docker-galaxy-stable