fix(controller): change timezone data to UTC
Merge pull request #2464 from bacongobbler/2463-controller-utc

fix(controller): change timezone data to UTC
fix(docs): update links to Docker documentation
docs(installing_docs): add cluster size to system requirements
Merge pull request #2471 from mboersma/fix-dockerfile-ref-link

fix(docs): update links to Docker documentation
Merge pull request #2472 from carmstrong/clarify_resouce_requirements

docs(installing_docs): add cluster size to system requirements
docs(installing_deis): add deisctl version check
Merge pull request #2486 from gabrtv/deisctl-version-check

docs(installing_deis): add deisctl version check