allow utimes on mac os, only lutimes isn't supported

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
discard ErrNotSupportedPlatform

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
Docker-DCO-1.1-Signed-off-by: Fred Lifton <fred.lifton@docker.com> (github: fredfl)
Update dockerizing.md
Fix mode on contrib/completion/zsh/_docker (-x)

ZSH completion scripts aren't supposed to be executable - they're sourced by ZSH and aren't run directly.

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
Merge pull request #6427 from tianon/fix-zsh-completion-mode

Fix mode on contrib/completion/zsh/_docker (-x)
Merge pull request #6519 from fredlf/latest-copyedits

Copy edits to dockerhub.md, fixed a broken link.
Maintain a whitelist of capabilities rather than droplist

This fixes 6/18 vulnerability

Docker-DCO-1.1-Signed-off-by: Dinesh Subhraveti <dineshs@altiscale.com> (github: dineshs-altiscale)
Update dockerlinks.md

Docker-DCO-1.1-Signed-off-by: Hyeongkyu Lee <hyeongkyu.lee@navercorp.com> (github: leeplay)
server: buildfile: ensure that ONBUILD triggers aren't committed

This patch fixes the bug where ONBUILD triggers are committed each build
step created during the ONBUILD trigger execution, since the triggers are
only wiped *after* all ONBUILD trigger steps have been committed. This was
fixed by simply copying the ONBUILD triggers and wiping the config
*before* committing anything.

Docker-DCO-1.1-Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> (github: cyphar)
integration-cli: add build test for NOCACHE

This patch adds CLI integration tests to ensure that NOCACHE instructions
in Dockerfiles only apply to direct children of the original image.

Docker-DCO-1.1-Signed-off-by: Aleksa Sarai <cyphar@cyphar.com> (github: cyphar)
Fix installation docs to use the new boot2docker command: ip

Docker-DCO-1.1-Signed-off-by: Lajos Papp <lajos.papp@sequenceiq.com> (github: lalyos)
Merge pull request #6524 from behemphi/patch-1

Update dockerizing.md
Merge pull request #6451 from cyphar/6445-fix-onbuild-passing-to-grandchildren

Ensure that ONBUILD triggers aren't committed to grandchildren
Merge pull request #6538 from leeplay/patch-2

Update dockerlinks.md
Update bash-completion to reflect ability to push single tags

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
Merge pull request #6547 from tianon/update-bash-completion-for-pushing-tags

Update bash-completion to reflect ability to push single tags
sqlite-3.6.20-1 unique constraint message

https://github.com/dotcloud/docker/issues/6551

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
Use libcontainer cap drop method

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)
Update close fd issues for lxc

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@docker.com> (github: crosbymichael)