int/multi_polygon
        </li>
</ul></div>
<p>
      <span class="bold"><strong>Internal changes</strong></span>
    </p>
<div class="itemizedlist"><ul class="itemizedlist" type="disc">
<li class="listitem">
          updates in specializations/not_implemented for various algorithms (as in
          an earlier version, these changes are still going on; they take care for
          simplified structs, better error reporting, and automatized documentation)
        </li>
<li class="listitem">
          fixes 