Add a very experimental QT based runtime for pgAdmin 4.

This runtime implements a brower control with embedded Python
interpretor. The Python interpretor runs a simple script at
startup to generate some HTML that is displayed in the browser.
Arbitrary URLs can be opened from the "Open URL" option on the
File menu.

runtime/pgAdmin4.cpp

@@ -0,0 +1,45 @@
+//////////////////////////////////////////////////////////////////////////
+//
+// pgAdmin 4 - PostgreSQL Tools
+//
+// Copyright (C) 2013, The pgAdmin Development Team
+// This software is released under the PostgreSQL Licence
+//
+// pgAdmin4.cpp - Main application entry point
+//
+//////////////////////////////////////////////////////////////////////////
+
+// Must be before QT
+#include <Python.h>
+
+#include <QtGlobal>
+
+#if QT_VERSION >= 0x050000
+#include <QtWidgets>
+#else
+#include <QApplication>
+#endif
+
+#include "BrowserWindow.h"
+
+int main(int argc, char * argv[])
+{
+    // Create the QT application
+    QApplication app(argc, argv);
+
+    // Initialise Python
+    Py_SetProgramName(argv[0]);
+    Py_Initialize();
+
+    // Create & show the main window
+    BrowserWindow browserWindow;
+    browserWindow.show();
+
+    // Go!
+    return app.exec();
+
+    // Shutdown Python
+    Py_Finalize();
+}
+
+