Merge pull request #4311 from shykes/engine-parsejob

Engine.ParseJob: create a new job from a shell-like text command.
Merge pull request #4288 from tianon/mkimage-steamos

Add "SteamOS" support to mkimage-debootstrap
Compile nsinit into docker for use with dockerinit
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Move the terminal setup to execdriver, instead of ./pkg/term

  It is independent of any particular driver, but likely used by
  multiple execdrivers. Also, pkg/... is not to have any links to
  docker, which this terminal setup does.

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
Engine: cleanup side effects between tests

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Engine: builtin command 'commands' returns a list of registered commands

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Engine: add tests for ParseJob()

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Engine: tiny cosmetic fix

To make @creack happy :)

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Adjust kernel version parsing to be more lenient of strange things like "3.12-1-amd64"

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
registry: Removed checksumPayload from exported fields

Docker-DCO-1.1-Signed-off-by: Sam Alba <sam@docker.com> (github: samalba)
Fix tests with dockerinit lookup path
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Use the cpu cgroup subsystem instead of memory because its non optional
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Added documentation for docker.io OAuth & Accounts

OAuth docs:
  documented the OAuth authorization flow and how to register your application

Account docs:
  documented getting/updating user profile data
  documented getting/updating user email data

Docker-DCO-1.1-Signed-off-by: Josh hawn <josh.hawn@docker.com> (github: jlhawn)
Honor user passed on container in nsinit
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Merge pull request #4312 from shykes/engine-error-reporting

Engine: clearer job error reporting
add --line-buffered

Docker-DCO-1.1-Signed-off-by: Victor Vieux <victor.vieux@docker.com> (github: vieux)
Merge pull request #4290 from tianon/extract-path

Extract our default PATH value to a constant for great reuse
Merge pull request #4320 from vieux/buffer_test_integration_line_by_line

Add --line-buffered to the integration test output filtering
Add info for driver
Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)
Merge pull request #4315 from shykes/engine-parsejob-test

Engine: add tests for ParseJob()