[josm_geochat] autocomplete works, notification was redone slightly


git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29571 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_geochat] new icon, fixed title


git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29572 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4
[josm_geochat] fixed autoscroll


git-svn-id: http://svn.openstreetmap.org/applications/editors/josm/plugins@29574 b9d5c4c9-76e1-0310-9c85-f3177eceb1e4