docker/fig — pull request #731 by yograterol (2014-12-15 02:49:49+00:00)
Title: docker build --pull 

Support for the --pull option in build images from Dockerfile

Issue: https://github.com/docker/fig/issues/726

Before merge we need "--pull" support in docker-py.

Block: https://github.com/docker/docker-py/pull/421