monitor: always exit, fixes #592

lib/monitor/run.js

@@ -278,10 +278,10 @@ bus.on('quit', function onQuit() {
           listener();
         }
       });
-      process.exit(0);
     } else {
       bus.emit('exit');
     }
+    process.exit(0);
   };
 
   // if we're not running already, don't bother with trying to kill