update changelog

ChangeLog

 Gajim 0.12-alpha1 (XX augustus 2008)
 
+  * Change licence from GPLv2 to GPLv3
+
   * SECURITY
   * Support for End-To-End encryption (XEP-0116)
   * SSL certificat verification
@@ -29,9 +31,11 @@ Gajim 0.12-alpha1 (XX augustus 2008)
   * Simplified "Accounts" dialog
   * Preferences window redesign
   * New GUI for chat dialog
+  * Roster treeview now uses modelfilter (faster)
+  * 
 
   * OTHER
-  * Support of PEP (Personal Eventing Protocol) (XEP-0163)
+  * Support of PEP (Personal Eventing Protocol) (XEP-0163, XEP-0107, XEP-1018, XEP-0118)
   * Support for Google Talk accounts with non gmail.com domain (+ GMail notifications)
   * Modified the format of emoticons list file, so we can choose the default code (#3696)
   * New Remote Controlling Option (XEP-0146): forward unread messages