Fix url
port patch to lxc-0.8.0 as thats the most stable version for docker
lxc 0.8.0 has bash bang lines
lxc-0.8.0 has bash-isms, so rather than patching the scripts and getting something unsupportable, I'm adding bash :/
Add "set -e" to make_iso.sh

This way, if a command fails, the script stops instead of barrelling onwards.

Fixes #116
If downloading docker is in the buildfile, then we cna over-ride it using a new Dockerfile
add an example over-ride that uses the test.docker.io build
add pipeworks to boot2docker
initial version - it works, now I need to invert the test in automount - we want the old mode to be the legacy mode :)