Merge "Remove barbican"

build.ini

docker/centos/binary/barbican/Dockerfile

docker/centos/binary/barbican/build

docker/centos/binary/barbican/config-external.sh

docker/centos/binary/barbican/start.sh

docker/centos/source/barbican/.buildinfo

docker/centos/source/barbican/Dockerfile

docker/centos/source/barbican/build

docker/centos/source/barbican/config-external.sh

docker/centos/source/barbican/start.sh

docker/common/barbican/config-external.sh

docker/common/barbican/start.sh

docker/fedora/binary/barbican

docker/rhel/binary/barbican

tests/test_build.py

tests/test_images.py