Update roadmap

TODO

 
-Main tasks
-----------
+Roadmap
+-------
 
-+ Addressbook
++ Address Book refactoring
 + Presence
-- Last calls history menu
++ Call History menu
++ Call transfer
++ Answering machine
+
+
+Nice to have
+------------
+
 - LDAP
 - Chat
-- Call transfer
-- Answering machine
 - File transfer
 - History browser
 - Logs window
-
-
-Side tasks
-----------
-
 - Dial SIP URI from server web page
 - Show register status
 - Device switching window when detected at runtime
 - Alert panel for redirect 30X
-
-
-Nice to have
-------------
-
 - Dial SIP URIs from the system
 - Minimize to Windows system tray
 - Desktop notifications
 - Desktop sharing
+- Accesibility features for blind users
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