- hided the main UI on application quit to create a user experience of a shutdown without lag

- added a way to terminate QThreads safely by waiting; should be much safer
- made sure that the ArgsThread class receive the signal to stop
- made sure that on application shutdown, all workers will quit before the actual exit

tclCommands/TclCommand.py

@@ -53,8 +53,8 @@ class TclCommand(object):
         if self.app is None:
             raise TypeError('Expected app to be appMain instance.')
 
-        if not isinstance(self.app, appMain.App):
-            raise TypeError('Expected appMain, got %s.' % type(app))
+        # if not isinstance(self.app, appMain.App):
+        #     raise TypeError('Expected appMain, got %s.' % type(app))
 
         self.log = self.app.log
         self.error_info = None