Changelog update

documentation/changelog.html

@@ -24,7 +24,8 @@
 <p>Chamilo 1.8.7 is a intermediate&nbsp;release including a lot of new features, mostly focused on social network, the handling of sessions (which will help many educational institutions, public or private, to manage their contents in a more flexible way) and visual style, and a few important bugfixes. It lays the first stable stone in the Chamilo software project.</p>
 <h3>New Features</h3>
 <ul>
-  <li>New tool: class attendance (usable in gradebook)</li>
+  <li>New tool: Class attendance (usable in Gradebook)</li>
+  <li>New Tool: Student certificate </li>
   <li>Thematic advance option added in course description (shown on course homepage)</li>
   <li>Timezone management at user and platform level (Feature #599)</li>
   <li>Upgraded PclZip library to version 2.8.2 (Feature #553)</li>
@@ -33,8 +34,7 @@
   <li>Exercise tool: Teachers can delete students results of an exercise (NOT LP results)</li>
   <li>pChart Horizontal bars library added thanks to gferri see (Feature #790)</li>
   <li>Exercice tool: Shuffle answers</li>
-  
-  
+  <li>Exercice tool: Copy exercises</li>
 </ul>
 
 <h3>Debugging</h3>