While reviewing this plugin, I found the following error and notice when installing (WP_DEBUG is turned on).
Notice: wpdb::escape is deprecated since version 3.6! Use wpdb::prepare() or esc_sql() instead. in /Volumes/sitesell-dev/Wordpress/wordpress/wp-includes/functions.php on line 2875
The plugin generated 198 characters of unexpected output during activation. If you notice “headers already sent” messages, problems with syndication feeds or other issues, try deactivating or removing this plugin.