cleaned up changelog to put in line with 1.6.3 release
diff --git a/user_guide/changelog.html b/user_guide/changelog.html
index 9cd3636..8149b7c 100644
--- a/user_guide/changelog.html
+++ b/user_guide/changelog.html
@@ -64,16 +64,11 @@
 

 <ul>

 	<li>No significant changes yet</li>

-	<li>Other changes

-		<ul>

-			<li>Documented the language file use of <kbd>byte_format()</kbd> in the <a href="helpers/number_helper.html">number helper</a>.</li>

-		</ul>

-	</li>

 </ul>

 

 <h3>Bug fixes for 1.6.4</h3>

 <ul>

-	<li>Fixed a double opening &lt;p&gt; tag in the index pages of each system directory.</li>

+	<li>No bug fixes yet</li>

 </ul>

 

 <h2>Version 1.6.3</h2>

@@ -113,6 +108,7 @@
 			<li>Charset information in the userguide has been moved above title for internationalization purposes (#4614).</li>

 			<li>Added &quot;Using Associative Arrays In a Request Parameter&quot; example to the <a href="libraries/xmlrpc.html">XMLRPC userguide page</a>.</li>

 			<li>Removed maxlength and size as automatically added attributes of form_input() in the <a href="helpers/form_helper.html">form helper</a>.</li>

+			<li>Documented the language file use of <kbd>byte_format()</kbd> in the <a href="helpers/number_helper.html">number helper</a>.</li>

 		</ul>

 	</li>

 </ul>

@@ -131,6 +127,7 @@
 	<li>Fixed a bug where <kbd>having()</kbd> was not adding an = into the statement (#4568).</li>

 	<li>Fixed assorted user guide typos or examples (#4574, #4706).</li>

 	<li>Added quoted-printable headers to Email class when the multi-part override is used.</li>

+	<li>Fixed a double opening &lt;p&gt; tag in the index pages of each system directory.</li>

 	</ul>

 

 <h2>Version 1.6.2</h2>