Merge pull request #257 from rakslice/windows_exit_on_prefs_exit

Windows: when prefs window is closed, do not run the emulator

BasiliskII/src/Windows/prefs_editor_gtk.cpp

@@ -407,6 +407,7 @@ static GtkWidget *make_combobox(GtkWidget *top, int label_id, const char *defaul
 // Window closed
 static gint window_closed(void)
 {
+	start_clicked = false;
 	return FALSE;
 }