rename antialiasing mode "MSAA 0" to "none" to avoid confusion.

apps/launcher/graphicspage.cpp

@@ -227,6 +227,9 @@ QStringList GraphicsPage::getAvailableOptions(const QString &key, Ogre::RenderSy
 
             if (strcmp (key.toStdString().c_str(), i->first.c_str()) == 0)
             {
+                if (key == "FSAA" && *opt_it == "0")
+                    result << QString("none");
+                else
                     result << ((key == "FSAA") ? QString("MSAA ") : QString("")) + QString::fromStdString((*opt_it).c_str()).simplified();
             }
         }