chore(controller): update python-etcd to 0.3.2
docs(*): move installing deisctl guide to "Installing Deis"
Merge pull request #2327 from carmstrong/move_install_deisctl

docs(*): move installing deisctl guide to "Installing Deis"
docs(reference): add controller API documentation
ref(docs): remove REST API autodocs

These autodocs have been superseded by the API v1 documentation, which
is more verbose and gives examples on how to use the API.
Merge pull request #2319 from mboersma/update-py-etcd

chore(controller): update python-etcd to 0.3.2
Merge pull request #2328 from bacongobbler/1490-api-v1

docs(reference): add controller API documentation; remove server autodocs