Skinny: avoid crash with autocompletion when skinny is unloaded

src/mod/endpoints/mod_skinny/mod_skinny.c

@@ -2031,6 +2031,8 @@ SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_skinny_shutdown)
 	switch_mutex_t *mutex = globals.mutex;
 	int sanity = 0;
 
+	skinny_api_unregister();
+	
 	/* release events */
 	switch_event_unbind(&globals.heartbeat_node);
 	switch_event_unbind(&globals.call_state_node);

src/mod/endpoints/mod_skinny/skinny_api.c

@@ -460,6 +460,13 @@ switch_status_t skinny_api_register(switch_loadable_module_interface_t **module_
     return SWITCH_STATUS_SUCCESS;
 }
 
+switch_status_t skinny_api_unregister()
+{
+	switch_console_set_complete("del skinny");
+
+    return SWITCH_STATUS_SUCCESS;
+}
+
 /* For Emacs:
  * Local Variables:
  * mode:c

src/mod/endpoints/mod_skinny/skinny_api.h

@@ -34,6 +34,7 @@
 #define _SKINNY_API_H
 
 switch_status_t skinny_api_register(switch_loadable_module_interface_t **module_interface);
+switch_status_t skinny_api_unregister();
 
 #endif /* _SKINNY_API_H */