fix topbar menu items

Improved the topbar menu set.

Fixed broken links from the topbar.

Removed "Click this" (for now?).

Ran `make www` to perform the above.

inc/header.default.html

@@ -1,7 +1,12 @@
 <!-- START: this line starts content from: inc/header.default.html -->
 
 <div class="header">
-  <img src="%%DOCROOT_SLASH%%png/ioccc.png" alt="IOCCC image by Matt Zucker" width=300 height=110>
+  <a href="%%DOCROOT_SLASH%%2011/zucker/index.html">
+      <img src="%%DOCROOT_SLASH%%png/ioccc.png"
+	   alt="IOCCC image by Matt Zucker"
+	   width=300 
+	   height=110>
+  </a>
   <h1>%%HEADER_1%%</h1>
   <h2>%%HEADER_2%%</h2>
 </div>