iSenseLabs OC 2.x product sort mod

<code><operation>
  <search><![CDATA[$sort = 'pd.name';]]></search>
  <add position="replace"><![CDATA[$sort = 'p.date_added';]]></add>
</operation>
<operation>
  <search><![CDATA[$order = 'ASC';]]></search>
  <add position="replace"><![CDATA[$order = 'DESC';]]></add>
</operation></code>