New online features for Freewebfone version 3.1b

1. Instant Alert: When your buddy is connected to the ULS server,
   both you and your buddy will get a "New buddy online!" alert. 
   So you can make a web phone call or chat your friend very easily.
   
2. Chat: You can chat in real time with your online buddies. 
   
3. Invisible Mode: When you chose this mode, your are "visible" only 
   by your buddies (the persons whose names on your Buddy List). 
   For other online users, you are complete invisible. You may also
   choose normal Visible Mode so every online user can see you.
   
4. Buddy List: A list of your friend's user names. User name must be
   4-15 characters and must be unique.

5. Linux version now plays video mail as well.

6. Added basic Proxy Firewall support for Chat, audio support will
   be available soon.
   
