Add Qt4 windowport

Originally by Ray Chason for 3.4.3, based on the Qt windowport by
Warwick Allison. The look and feel is mostly the same.

Some improvements over the Qt 3 interface are:

* Panes are resizable
* Full support for IBMgraphics, and walls and corridors are drawn with
  graphical primitives for a continuous appearance no matter what the font
  says
* Lots of irritating glitches fixed
* Menus support proportional fonts correctly

Adding this because the old Qt windowport cannot be compiled on Qt4,
even with Qt3 compatibility stuff.

TODO:
 - background map glyphs
 - status hilites
 - menucolors

win/Qt4/qt4plsel.h

@@ -0,0 +1,45 @@
+// Copyright (c) Warwick Allison, 1999.
+// Qt4 conversion copyright (c) Ray Chason, 2012-2014.
+// NetHack may be freely redistributed.  See license for details.
+
+// qt4plsel.h -- player selector dialog
+
+#ifndef QT4PLSEL_H
+#define QT4PLSEL_H
+
+namespace nethack_qt4 {
+
+class NetHackQtKeyBuffer;
+
+class NetHackQtPlayerSelector : private QDialog {
+	Q_OBJECT
+public:
+	enum { R_None=-1, R_Quit=-2, R_Rand=-3 };
+
+	NetHackQtPlayerSelector(NetHackQtKeyBuffer&);
+
+public slots:
+	void Quit();
+	void Random();
+
+	void selectName(const QString& n);
+	void selectRole(int current, int, int previous, int);
+	void selectRace(int current, int, int previous, int);
+	void setupOthers();
+	void selectGender(int);
+	void selectAlignment(int);
+
+public:
+	bool Choose();
+
+private:
+	QTableWidget* role;
+	QTableWidget* race;
+	QRadioButton **gender;
+	QRadioButton **alignment;
+	bool fully_specified_role;
+};
+
+} // namespace nethack_qt4
+
+#endif