Allow org_title to contain variables (as it does by default)

config/conf.pl

@@ -2208,7 +2208,7 @@ sub save_data {
         $org_logo_height |= 0;
         print CF "\$org_logo_width  = '$org_logo_width';\n";
         print CF "\$org_logo_height = '$org_logo_height';\n";
-        print CF "\$org_title     = '$org_title';\n";
+        print CF "\$org_title     = \"$org_title\";\n";
         print CF "\$signout_page  = '$signout_page';\n";
         print CF "\$frame_top     = '$frame_top';\n";
         print CF "\n";