Changelog updated

documentation/changelog.html

@@ -144,6 +144,14 @@
   <li>main/garbage/ directory</li>
 </ul>
 
+<h3>CSS changes</h3>
+<ul>  
+  <li>CSS factorization - putting all common CSS to main/css/base.css see #3163</li>
+  <li>Thickbox UI was changed to improved usability</li>
+</ul>
+
+
+
 
 
 
@@ -327,7 +335,7 @@
   <li>When installing the platform will be active by default the following options: Allow edit tutors in the courses of the sessions, social network and sending messages</li>
   <li>When you add an answer in Multiple choice or Multiple answers the score default is zero </li>
   <li>Portal news UI improvements</li>
-  <li>User portal page UI improvements</li>
+  <li>User portal page UI improvements</li>  
 </ul>
 <h3>Known issues</h3>
 <ul>