Log Message:
Update cgoban-java to 3.3.20. Client changes include:
  - Changed minimum java release from 1.3 to 1.4.
  - Added <gmt>...</gmt> text tag. Try typing "Hello at
    <gmt>2007-08-29 8:00</gmt>" in a chat pane, or put it in \ 
your user
    info, or in the greeting text for a room you own, etc.
  - Added "Never Undo" option when your opponent has already asked
    your for undo several times.