Back Link for Carts Tab v1.0

Add a "Back to list" link on the bottom of the cart detail page.

#
#----------[ OPEN ]----------
#
admin/tabs/AdminCarts.php

#
#----------[ FIND ]----------
#
    // Cancel product
    echo '
   </fieldset>
  <div class="clear" style="height:20px;">&nbsp;</div>';

#
#----------[ AFTER, ADD ]----------
#
  echo '<br /><br /><a href="'.$currentIndex.'&token='.$this->token.'"><img src="../img/admin/arrow2.gif" alt="" /> '.$this->l('Back to cart list').'</a><br />';