working on better private/public registry support, allow users account stubs to be created, but disabled by default
I do not like big commits, but sorta necessary on this, this makes docker registries 0.8.1 and below all work
updating unit tests
Merge branch 'master' of github.com:ekristen/docker-index

* 'master' of github.com:ekristen/docker-index:
  Update README.md
  Fix typo in README