Switch docker builder over to go-dockerclient

[markpeek]

This is a placeholder issue to switch the docker code to use go-dockerclient which would clean up the existing code (e.g., the upload/download code). Due to needing more recent API changes (such as archive to copy from host to container) this would require updating the docker minimum requirement to 1.8+.

Related to: #901, #1752, #2436, #2581, #2675, #2697, #2807, #2832, #3102, #3222

[cbednarski]

I'm starting on this for the docker communicator as part of the work on #2793. I don't plan to do it all at once.

[cbednarski]

Current (updated) plan is to rewrite the docker bits in 0.11 to use go-dockerclient so we don't have to deal with this anymore. This should fix most of the problems people are having with the docker builder. This will break bc for some specific cases but I think overall this just makes more sense.

[jfusterm]

Hi @cbednarski , any plans to implement this anytime soon?

[rickard-von-essen]

@jfusterm I have started this work but it's progressing slowly, see #4186.

[mwhooker]

going to close and take care of in #4186