At some point we started doing a docker build in travis. I'm not sure what purpose that served exactly as it doesn't seem to do any additional options beyond those we already build directly in other jobs. As it stands, docker builds are failing with what looks like a need to pass dockerhub credentials as part of the job. I guess that could be figured out, but I wonder if it's worth it.
Given changes in docker rate limiting and travis seeming to tighten up on the free build tier, perhaps it would be best to just kill the docker build job out. Any objections or better ideas?
