Revise edit and write restrictions

jam

@@ -19,6 +19,9 @@ class Jam_app(App):
         # the file open for editing
         self.openfile=kwargs.get("openfile","")
 
+        # readonly mode
+        self.readonly=False
+
         super(Jam_app,self).__init__()
 
 
@@ -35,8 +38,8 @@ class Jam_app(App):
         layout.add_widget(self.painter)
         layout.add_widget(self.status_bar)
         layout.add_widget(self.command_prompt)
-        return layout
 
+        return layout
 
 
 # disable red circles on right click