README: import from old master
Merge pull request #29 from proppy/plugin

add README back
README: update size
Merge pull request #30 from proppy/plugin

README: update size
generate certs if SECURE=ssl
better entrypoint and symbolic links for certs
run: generate separate server certs
run: update GUNICORN_OPTS and REGISTRY_TLS_VERIFY to match upstream contract
run: update default registry certs prefix
run: fix ssl configuration
README: update ssl section
README: line split
run: fix alt name
run: empty subject remove port constraint
run: simplify cert generation logic
run: better CN and perm for keys
README: add ssl gunicorn flag in usage
README: add documentation for non default port and cert
run: remove gunicorn debug
run: add alt hostname for boot2docker