(though poorly.) Both required processing in the jni that isn't
possible (e.g. because no libiconv included) so I created callbacks
into java from the dict building code. Add ability to download dicts,
to select them, to add and remove players and make them robots or
human. Robot-vs-robot game doesn't work well (robots trade a lot and
server_do seems not to be getting called enough) but will soon.
Coalesce penMove events. Implement game list menuitems like delete,
copy, etc.
the jni env passed in so all calls happening inside will use the right
one. Required as part of running a second thread, re. which see
longer comment to follow
