Please update vendored github.com/fsouza/go-dockerclient

Please update github.com/fsouza/go-dockerclient in order to support OpenBSD builds. It is the last step before I can package gitlab-ci-multi-runner for OpenBSD 6.0.

I tried to create a MR for it, but running godep on my system keeps removing all files in Godeps/_workspace/src/github.com/fsouza/go-dockerclient/external/ (which is exactly what I want updated). Thanks in advance.