Rename decking attach to decking tail?

[makeusabrew]

We're trying to abstract docker terminology so does attach make sense?

If it does get renamed to tail, I'd love it to log first then attach - effectively like tail -f. I really miss those last 10 or so lines when attaching.

[makeusabrew]

Version 1.13 of the remote API has native support for tailing logs so implementing this (alongside attach for BC) should be a breeze.

http://docs.docker.com/reference/api/docker_remote_api_v1.13/#get-container-logs