Allow for all command types for roaming event
Allow for all command types for roaming event

Prior to this commit roaming geofences only registered changes to
the SET command. Now it will work for SET/DEL/FSET, just like
non-roaming geofences.

To opt out of these events, explicitly choose which event you
would like to register when you create the geofences.

For example:

  NEARBY fleet FENCE COMMANDS set,del ROAM fleet * 5000

Will only fire off events from SET and DEL command.

Closes #597

tidwall/tile38,tidwall/tile38