Add Search to front page, and make it less horrible with CSS.

Could be a lot better still.

index.htm

@@ -57,6 +57,9 @@ support:</h4>
    <li><a href="pubs.htm">Published reports</a></li>
    <li><a href="areas.htm">Area description</a></li>
    <li><a href="https://camcaving.uk" target="_blank">CUCC website</a></li>
+   <li><form name=P method=get action="/search" target="_top">
+    <input type=search name=P value="testing" size=8 autofocus>
+    <input type=submit value="Search"></li>
 </ul>
 
 </body>