changed to a one liner that properly cleans up after itself
updated docco
updated docco
* make sure both docker and jenkins repos are properly added to apt-get.
* break out the apt-get installs so they're all documented for purpose
* better docco
* run docker attached to the network, for future use in calling docker daemon from inside docker containers (or outside on the host)
* install ngrok because it's a useful tool
run a jenkins server, first draft