better support for uid mapping to docker apps [#144809723](https://www.pivotaltracker.com/story/show/144809723)
better support for uid mapping to docker apps
[#144809723](https://www.pivotaltracker.com/story/show/144809723)

cloudfoundry-incubator/nfs-volume-release,cloudfoundry-incubator/nfs-volume-release,cloudfoundry-incubator/nfs-volume-release