"reconnect" in "Information" dialog doesn't work with 0.12.14

[pmarek]

As the "kbd-sync=off" default still doesn't work (#184 _not_ working, AFAICS), I resorted to use the "Information" dialog to switch it off and reconnect.

This doesn't work with 0.12.14 anymore - the "Reconnect" and "Detach" buttons don't restart my xpra. The winswitch tray icon changes its color, but ~/.winswitch/client/applet.log doesn't get any new lines and the xpra sessions isn't restarted with the updated settings.