 support it (covered_by, touches, within,
          etc.) now support as input linear and/or areal geometries
        </li>
<li class="listitem">
          The support for boost::variants as input geometries in various algorithms
        </li>
<li class="listitem">
          The rtree support for indexing segments
        </li>
<li class="listitem">
          The rtree nearest() predicate support for arbitrary geometries
        </li>
</ul></div>
<p>
      <span class="bold"><strong>Improvements</strong></s