DOCKER-812: docker build: support compressed (gzip, bzip2, xz) tar archive * update the sdc-docker-build module
DOCKER-812: docker build: support compressed (gzip, bzip2, xz) tar archive
* update the sdc-docker-build module

joyent/sdc-cn-agent,joyent/sdc-cn-agent,joyent/sdc-cn-agent