Install repo2docker from yuvipanda's fork
Install repo2docker from yuvipanda's fork

Until https://github.com/jupyter/repo2docker/pull/557
gets merged

berkeley-dsep-infra/datahub,berkeley-dsep-infra/datahub,berkeley-dsep-infra/datahub,ryanlovett/datahub,ryanlovett/datahub,ryanlovett/datahub