Qt: ^V on OSX

I can't take credit for this and still have no idea why it is
needed, but it fixes use of ^V as a command and as input to
to the regular version of yn_function().  In particular, '&'
command reports it as ^V.  Unfortunately when 'popup_dialog' is
set, no control characters seem to be accepted by the part of
NetHackQtYnDialog(Exec+KeyPressEvent) responsible for arbitrary
input.

It also causes getlin() to terminate but I can't think of any
situation where ^V would be considered to be valid input for
getlin() so won't worry about that.

I put it in as '#if MACOSX' because I don't know whether any
other Qt platforms need it.

win/Qt/qt_main.h

@@ -19,6 +19,11 @@
 // [Used in qt_bind.cpp and qt_main.cpp, but not referenced in qt_stat.cpp.]
 #define DYNAMIC_STATUSLINES
 
+// NetHackQtBind::notify() doesn't see ^V on OSX
+#ifdef MACOSX
+#define CTRL_V_HACK
+#endif
+
 namespace nethack_qt_ {
 
 class NetHackQtInvUsageWindow;
@@ -83,6 +88,9 @@ private slots:
 	void zoomMap();
 	void raiseMessages();
 	void raiseStatus();
+#ifdef CTRL_V_HACK
+        void CtrlV();
+#endif
 
 private:
 	void ShowIfReady();