update changelog for Nicolas' patches

h2/src/docsrc/html/changelog.html

@@ -34,6 +34,7 @@ Change Log
     negative numbers.
 </li><li>Add an UNDO_LOG_SIZE column to the SESSIONS metadata table, to allow detecting when rogue
     sessions are creating large transactions.
+</li><li>Some small fixes to the GEOMETRY support, patches by Nicolas Fortin.
 </li></ul>
 
 <h2>Version 1.3.173 (2013-07-28)</h2>