Q_WS_MAEMO_5 is undocumented

http://doc.qt.nokia.com/qt-maemo-4.6/qtglobal.html documents several platform-specific defines, but not Q_WS_MAEMO_5. There is http://wiki.maemo.org/Qt4_Hildon#Adding_Maemo_changes_to_a_Qt_Application and it is mentioned in passing in http://doc.qt.nokia.com/qt-maemo-4.6/maemo5-zoom.html (even though it is not used in the example) but it should be documented alongside the other platform-specific defines.