v0.14.0

• Removal: docker.images.get has been renamed to docker.images.inspect, remove support for Docker 17.06
• Feature: Add support for docker save and load api methods
• Feature: Add support for Docker 17.12.1 and 18.03.1
• Fix: fix to parse response of docker load method as a json stream
• Fix: don't remove non-newline whitespace from multiplexed lines
• Fix: Handle responses with 0 or missing Content-Length
• Fix: docker_context.tar error