Merge branch 'master' into bebanjo

* master:
  add sync command to end of vexor/worker
  rename docker/install to docker

Conflicts:
	playbooks/roles/vexor/worker/tasks/main.yml
Serving private files through nginx
Clean up workers every hour by default
Merge remote-tracking branch 'upstream/bebanjo' into bebanjo

* upstream/bebanjo:
  Clean up workers every hour by default
  Serving private files through nginx

Conflicts:
	playbooks/roles/vexor/worker/tasks/main.yml
	playbooks/roles/vexor/worker/tasks/mgmt.yml