Merge branch 'push-to-com-only' into 'master'

Push release tags to gitlab.com only

See merge request gitlab-org/gitlab-workhorse!221

_support/release.sh

 set -e
 
-remotes='https://dev.gitlab.org/gitlab/gitlab-workhorse.git https://gitlab.com/gitlab-org/gitlab-workhorse.git'
+remotes='https://gitlab.com/gitlab-org/gitlab-workhorse.git'
 
 main() {
   get_version