make sure connection is closed when stopping

When stopping, also make sure the close_connection of the session is
called. As a sideeffect the status in the statuswindow is updated
properly now after the previous change.

Signed-off-by: BlackEagle <ike.devolder@gmail.com>

Author: BlackIkeEagle

pythonx/vdebug/session.py

@@ -57,6 +57,9 @@ def stop_listening(self):
             self.listener.stop()
             self.ui().say("Vdebug stopped waiting for a connection")
 
+        if self.__session:
+            self.__session.close_connection()
+
     def run(self):
         if self.is_connected():
             self.dispatch_event("run")