Support MSGTYPE=stop by having qt_display_nhwindow(WIN_MESSAGE,TRUE)
issue a tty-style --More-- prompt. For popup_dialog Off, the prompt
gets appended to the most recent message; for popup_dialog On, it is
issued via a popup and not displayed in the message window.
It accepts <space>, ^J, ^M, and ^[ (ESC) to dismiss. There's no way
to dismiss it with the mouse (for !popup_dialog) which might need
some fix....
Several adventures along the way. The '^C-in-parent-terminal triggers
infinite loop repeatedly complaining about "event loop already running"'
is now a one-shot complaint. It isn't fixed but the severity of
having it happen is greatly reduced.
Any key bindings in player's run-time config file will already be
in place by the time the Qt menus are constructed. Those menus
will use the new key assignments rather than the defaults, so not
a bug.
The save file selection widget was issuing a complaint to stderr:
|QLayout: Attempting to add QLayout "" to QDialog "", which already
| has a layout
This shuts that up, but doesn't fix the broken save file selection
so I haven't added a fixes37.0 entry.
Record a bunch of Qt stuff before I forget it all. It's probably
too late: I'll bet I've left some things out.
Doesn't include several menu problems that I've already fixed but
not checked in yet. (I don't have any other Qt changes pending.)
