only return false on read requests to vlc if both eos is set and the buffer is empty. patch by kevin_b
only return false on read requests to vlc if both eos is set and the buffer is empty. patch by kevin_b

BinChengfei/phonon-vlc,KDE/phonon-vlc,KDE/phonon-vlc,BinChengfei/phonon-vlc,panzi/phonon-vlc,BinChengfei/phonon-vlc,panzi/phonon-vlc,KDE/phonon-vlc