Implemented starting Python in a terminal window. The implementation isn't
optimal, especially if Terminal wasn't running yet, but it works.
diff --git a/Mac/OSX/PythonLauncher/FileSettings.m b/Mac/OSX/PythonLauncher/FileSettings.m
index 99a1166..b3fc25a 100755
--- a/Mac/OSX/PythonLauncher/FileSettings.m
+++ b/Mac/OSX/PythonLauncher/FileSettings.m
@@ -165,7 +165,7 @@
         tabs?" -t":"",
         others,
         script,
-        with_terminal? "" : " &"];
+        with_terminal? "&& exit" : " &"];
 }
 
 // FileSettingsSource protocol