swipely/docker-api — pull request #209 by mikz (2014-11-05 19:14:19+00:00)
Title: Fix Docker::Image.create when `m` is nil

Sometime when pulling for second time the API responds
with nil somewhere, leading to:

undefined method `[]' for nil:NilClass
# /var/lib/gems/2.1.0/gems/docker-api-1.13.7/lib/docker/image.rb:102:in `create'