update changelog and credits

documentation/changelog.html

@@ -56,8 +56,9 @@
    <li>Exercises: Question list interface was changed, new drag and drop behaviour added</li>
    <li>New Session page added when clicking in the session name in the Course list</li>
    <li>Social notifications added in the Social tab</li>
-   <li>>Support for Hindi language has been added (Feature #2746)</li>
+   <li>Support for Hindi language has been added (Feature #2746)</li>
    <li>Added sessions, promotions and careers cloning features (Feature BT#1916)</li>
+   <li> Integration of Pixlr image editing services and photo retouching (Feature #2712)</li>
 </ul>
 <h3>Debugging</h3>
 <ul>

documentation/credits.html

@@ -458,7 +458,11 @@ rewritten by
 <ul>
   <li>Integration audio services from Google, Pediaphon and vozMe: Juan Carlos Raña Trabado</li>
 </ul>
-<p>&nbsp;</p>
+<h2>Bitmap image editor</h2>
+<ul>
+	<li>Integration of Pixlr image editing services and photo retouching: Juan Carlos Raña Trabado</li>
+</ul>
+
 <h1>Translations</h1>
 There are too much translators to list them all. <br />
 Please see http://www.chamilo.com/DLTT/ to see a list of the translators.