Support CONF_CHANGED events
#1692 (moved) implemented CONF_CHANGED events for Tor which get controllers can use to get notified of any configuration changes made by SETCONF/HUP. TorCtl should support CONF_CHANGED events for its listeners.
#1692 (moved) implemented CONF_CHANGED events for Tor which get controllers can use to get notified of any configuration changes made by SETCONF/HUP. TorCtl should support CONF_CHANGED events for its listeners.