do not alter json in docker save

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

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
add a test using the flags

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
More verbose error for parallel pull

Partially fixes #6484
Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
Validate that one of streams choosen in logs on api side

Fixes #6506

There is the bug, that very hard to fix: When we return job.Errorf in
"logs" job it writes to job.Stderr, to which connected ResponseWriter and on
this write w.WriteHeader(http.StatusOK) is called. So, we get 200 on error
from "logs" job.

Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
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)
Fix minor typo

Docker-DCO-1.1-Signed-off-by: Kevin Houdebert kevin.houdebert@gmail.com (github: qwazerty)
Disable netgo for dynbinary builds

It's not necessary to use the netgo implementation for non-static builds. :)

Docker-DCO-1.1-Signed-off-by: Andrew Page <admwiggin@gmail.com> (github: tianon)
full url to GCE image

Docker-DCO-1.1-Signed-off-by: Adam Singer <financeCoding@gmail.com> (github: financeCoding)
Update windows.md

Update Program Files path description, the default install folder is "Boot2Docker", rather than "Docker"
Fix typo in networking.md

Minor typo fix
Merge pull request #6564 from financeCoding/docs-installation-google-fix

full url to GCE image
Minor typo/format fixes

This fixes a code block typo so it renders as a code block.  Additionally synchronizes the variable prefix examples from 'DB' and 'DB1_' to 'DB_' and 'DB1_'
Merge pull request #6566 from jokajak/patch-1

Fix typo in networking.md
Merge pull request #6540 from lalyos/docs-installation-mac-windows

Fix installation docs to use the new boot2docker command: ip
Merge pull request #6568 from jokajak/patch-2

Minor typo/format fixes for dockerlinks.md
Merge pull request #6565 from shaunol/patch-1

Update windows.md
docker save: raw json

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
Merge pull request #6503 from LK4D4/verbose_parallel_error_pull_#6484

More verbose error for parallel pull
Merge pull request #6516 from LK4D4/validate_logs_params

Validate that one of streams choosen in logs on api side