+e: during the test since they may fail so far
create the bridge if needed
avoid dependency on a IP network
doc: list dependencies
edeploy-lxc: add stop_bridge()
example: use Debian eDeploy role
example: simplify the script
example: do not disable apt
example: turns NAT on
example: DEBIAN=1

according to the config.yaml, we use Debian for the example
example: simplify $DEBIAN content test
tty: avoid conflict between containers and host