Make debian init work when called quickly.

We use the start-stop-daemon pid creation mechanism in addition the intrinsic built into docker.  This means the pid file is guaranteed to be written out by the time the script exits.

See #6184.

Docker-DCO-1.1-Signed-off-by: Joe Beda <joe.github@bedafamily.com> (github: jbeda)
Update dockervolumes.md

Docker-DCO-1.1-Signed-off-by: Hyeongkyu Lee <hyeongkyu.lee@navercorp.com> (github: leeplay)
return 304 is status isn't modified in start and stop

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
Remove viewport tag to fix iPhone scaling
Document the pause and unpause commands available on API v1.12 onwards

Docker-DCO-1.1-Signed-off-by: Abel Muiño <amuino@gmail.com> (github: amuino)
Merge pull request #6658 from amuino/doc_pause_unpause

Document the pause and unpause commands available on API v1.12 onwards
fix tests

Docker-DCO-1.1-Signed-off-by: Victor Vieux <vieux@docker.com> (github: vieux)
Merge pull request #6656 from andersryanc/master

Remove Docs viewport tag to fix iPhone scaling
Add benchmarks on TrucnIndex.Delete

Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
Update dockervolumes.md

~~~
kyu@kyu-HP-EliteBook-2570p:~/apps/docker/volume$ docker run -v /dbdata --name dbdata2 ubuntu
2014/06/25 14:17:44 Error response from daemon: No command specified
~~~
improve untar when using files instead of directories. Specifies behavior on non-existant targets.

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
fix bug in FollowSymlinkInScope when link == root

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
add integration test for --workdir=/

Docker-DCO-1.1-Signed-off-by: Tibor Vass <teabee89@gmail.com> (github: tiborvass)
Combined AddGet benchmark

Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
fix whitespace that precedes the escape in a multiline string.

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
Merge pull request #6666 from erikh/fix-escaping-whitespace

fix whitespace that precedes the escape in a multiline string.
Allow re-mounting an existing mount with "remount"

Without this line of code, if a volume is present in /proc/mounts,
it cannot be remounted with new mount options.

Docker-DCO-1.1-Signed-off-by: Peter Waller <p@pwaller.net> (github: pwaller)
Merge pull request #6669 from pwaller/issue-6652

Allow re-mounting an existing mount with "remount"
Merge pull request #6664 from LK4D4/bench_on_truncindex_delete

Add benchmarks on TrucnIndex.Delete
Merge pull request #6661 from tiborvass/tar_untar_file

Improve untar when using files instead of directories. Specifies behavior on non-existant targets.