Add synchronization in server.Containers

This fixes races between ps and other operations
Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
Bump version to v1.1.0

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
Merge pull request #6818 from vieux/bump_v1.1.0

Bump v1.1.0
Merge remote-tracking branch 'origin/release'

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
Change version to 1.1.0-dev

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
Merge pull request #6838 from vieux/merge_release_v1.1.0

Merge release v1.1.0
docs: add Groovy Docker-Client link

Docker-DCO-1.1-Signed-off-by: Tobias Gesellchen <tobias@gesellix.de> (github: gesellix)
doc fix: remove trailing *

The trailing `*` makes it seem like there is some kind of annotation
Merge pull request #6842 from mrorii/patch-1

doc fix: remove trailing *
Remove dup tests

integration/server_test.go/TestCreateNumberUsername == integration-cli/docker_cli_run_test.go/TestUserByID
integration/server_test.go/TestRmi == integration-cli/docker_cli_images_test.go/TestCLIImageTagRemove

Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83)
Merge pull request #6801 from cpuguy83/remove_dup_run_tests

Remove dup tests
Merge pull request #6771 from LK4D4/fix_containers_list_race

Add synchronization in server.Containers
Fix "Error while reading file" Fish completion

An unbalanced single quote caused Fish to fail to load the completion file with `source: Error while reading file “/etc/fish/completions/docker.fish”`.

Docker-DCO-1.1-Signed-off-by: Andrew France <andrew@avito.co.uk> (github: Odaeus)
Merge pull request #6852 from Odaeus/patch-1

Fix "Error while reading file" in Fish completion
Fix the parent/child relationship in the docs

In the Docker Linking Docs, the parent child relationship
was backwards. The Web container should be able to access
the DB, not other way around. Furthermore, the output of
'docker ps' was wrong (it showed that the DB could access
the Web). This fixes both typos.

Docker-DCO-1.1-Signed-off-by: Ian Bull <irbull@gmail.com> (github: irbull)
run.md: Fix references to cli

There are now no other occurrences of `#cli-` in this document.

TODO: Find other places with wrong links.
Merge pull request #6860 from felixrabe/patch-7

run.md: Fix references to cli
Merge pull request #6846 from irbull/master

Fix the parent/child relationship in the docs
Merge pull request #6840 from gesellix/patch-1

docs: add Groovy Docker-Client link