add qt version check instead commenting out code until qt-copy has qt 4.5
add qt version check instead commenting out code until qt-copy has qt 4.5

KDE/phonon-xine,KDE/phonon-waveout,KDE/phonon-mmf,KDE/phonon-xine,shadeslayer/phonon-gstreamer,shadeslayer/phonon-gstreamer,KDE/phonon-gstreamer,KDE/phonon-directshow,KDE/phonon-gstreamer,KDE/phonon-xine,KDE/phonon-quicktime,shadeslayer/phonon-gstreamer,KDE/phonon-directshow