>=wine-1.7.19-r2: introduce wine-gstreamer-patches tarball
>=wine-1.7.20-r1: gstreamer does not depend on pulseaudio
wine-1.7.21-r1: now able to use wine-1.7.20-r1.ebuild
>=wine-1.7.22: define COMPHOLIO_SRC_URI once instead duplicate SRC_URI lines
>=wine-1.7.23: drop unused local var