worker_manager: Make Stomp port explict

  Works around problems with some version of Stomp client
mys_restore_command: stop mysql and zero data area

  before restoring from URL
mys_configure_updates

  - add support for changing ftp user and password.
  - add support for updating admin password.
  - add support for updating git archive.
dom-mys-configure: update for new options

  * allow dom-mys-configure to set ftp passwords, etc.
  * fix mys_configure_command to handle domtrix restart
Handle domtrix config updates within current worker
dom-puppet-config: Add mysql5.6 support