fix more exit problems

bink.py

@@ -127,7 +127,7 @@ class App():
         self.loop.start()
 
     def exit(self, message=""):
-        app.loop.stop()
+        self.loop.stop()
         run(["clear"])
         exit(0)
 
@@ -166,5 +166,4 @@ app = App()
 try:
     app.loop.run()
 except KeyboardInterrupt:
-    app.loop.stop()
     app.exit()