Docs: add ApiVersion to /version for remote API 1.12

Docker-DCO-1.1-Signed-off-by: Paul Morie <pmorie@gmail.com> (github: pmorie)
Add helper function to make prctl system call.
Docker-DCO-1.1-Signed-off-by: Mrunal Patel <mrunalp@gmail.com> (github: mrunalp)
Fix several man page spelling errors

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
Do inspect under container lock

It fixes some race conditions
Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
Fixed DOCKER_OPTS

Docker-DCO-1.1-Signed-off-by: James Turnbull <james@lovedthanlost.net> (github: jamtur01)
dockervolumes: Fix a minor typo
Merge pull request #6443 from catharsis/patch-1

dockervolumes: Fix a minor typo
Guillaume is busy full-time on his new business, and no longer available
as a maintainer.

Best of luck on your e-commerce business Guillaume, and thanks for all
the great contributions!

Docker-DCO-1.1-Signed-off-by: Solomon Hykes <solomon@docker.com> (github: shykes)
Merge pull request #6448 from shykes/pr_out_guillaume_is_busy_full_time_on_his_new_business_and_no_longer_available_as_a_maintainer
Do not build using sudo on Mac OS X

Building using sudo fails on Mac OS X, but is necessary on Linux.

See https://groups.google.com/d/topic/docker-dev/1EW_pfA1t9o/discussion for discussion.

Docker-DCO-1.1-Signed-off-by: Glyn Normington <gnormington@gopivotal.com> (github: glyn)
Merge pull request #6304 from glyn/mac-build-no-sudo

Do not build using sudo on Mac OS X
Updated docker pull manpage to reflect ability to specify URL of registry.

Also fixed a typo in same file.

Docker-DCO-1.1-Signed-off-by: Matthew Heon <mheon@redhat.com> (github: mheon)
Merge pull request #6425 from tianon/fix-man-page-spelling-errors

Fix several man page spelling errors
Updated CLI documentation for docker pull with notes on specifying URL

Docker-DCO-1.1-Signed-off-by: Matthew Heon <mheon@redhat.com> (github: mheon)
Issue #5279 -> Introduce horizontal scrolling to code-blocks

Closes issue #5279

This commit re-introduces horizontal scrolling to docs' codeblocks

Docker-DCO-1.1-Signed-off-by: O.S. Tezer <ostezer@gmail.com> (github: ostezer)
Document the potential insecurity of --net host

Docker-DCO-1.1-Signed-off-by: Timothy <timothyhobbs@seznam.cz> (github: https://github.com/timthelion)
Issue #5036 -> Click on nav bar goes to top level doc

Closes issue #5036

This commit redirects the reader to top level doc upon clicking
on a main nav. menu item (eg. Installation [click] -> Mac OS X)

Docker-DCO-1.1-Signed-off-by: O.S. Tezer <ostezer@gmail.com> (github: ostezer)
Merge pull request #6458 from ostezer/docs-code-block-scrolling

Issue #5279 -> Introduce horizontal scrolling to code-blocks
Merge pull request #6430 from LK4D4/lock_inspect

Do inspect under container lock
Merge pull request #6449 from timthelion/host-net-docs

Document the potential insecurity of --net host