Don't exclude .git directory from docker containers.
Don't exclude .git directory from docker containers.

 * Our release process requires the .git directory to exist for docker
   image builds to succeed.

REANNZ/faucet,mwutzke/faucet,faucetsdn/faucet,anarkiwi/faucet,anarkiwi/faucet,REANNZ/faucet,faucetsdn/faucet,mwutzke/faucet