changed conditional for empty cells to not match on variables that would be loosely cast as an empty string
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index e93088c..3cf2ea8 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -70,6 +70,7 @@
     <li>Fixed assorted user guide typos (#3453)</li>

 	<li>Fixed an AR_caching error where it wasn't tracking table aliases (#3463)</li>

 	<li>Fixed a bug in the DB class testing the $params argument</li>

+	<li>Fixed a bug in the Table library where the integer 0 in cell data would be displayed as a blank cell.</li>

 </ul>

 <h2>Version 1.6.1</h2>

 <p>Release Date: February 12, 2008</p>