py[3]-gstreamer1 was added to ports.


git-svn-id: svn://creme-brulee.marcuscom.com/ports/trunk@19803 df743ca5-7f9a-e211-a948-0013205c9059
Convert:
USE_PYTHON* -> USES=python*
USE_XZ|USE_BZIP2 -> USES=tar:
replace some post-install ${STRIP_CMD} with INSTALL_TARGET=install-strip


git-svn-id: svn://creme-brulee.marcuscom.com/ports/trunk@19804 df743ca5-7f9a-e211-a948-0013205c9059