Use TCP ports only (new docker api)
Use get_ports method in dashboard template.
Merge pull request #22 from xdissent/tcp-ports

Support multi-protocol ports in docker api
fixes #24: added Dockerfile; removed initial.json (using in dockerfile now)
fixes #25: ui spinner shows if no containers or hosts
fixed bug with update_admin_user management command
fixes #18: show all containers
fixes #18: fixes ui bug with selector on other tabs