Disable automatic killing of containers when docker stop fails

Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83)
add softlayer installation instructions

Docker-DCO-1.1-Signed-off-by: Andrea Turli <andrea.turli@gmail.com> (github: andreaturli)
address comments from @jamtur01

Docker-DCO-1.1-Signed-off-by: Andrea Turli <andrea.turli@gmail.com> (github: andreaturli)
add time since exit in docker ps

Docker-DCO-1.1-Signed-off-by: Victor Vieux <victor.vieux@docker.com> (github: vieux)
graphdriver: build tags

Enable build tags for all the graphdrivers to be excludable.

As an example:
```
$ go build
$ ls -l docker
-rwxr-xr-x 1 vbatts vbatts 18400158 Mar 14 14:22 docker*
$ go build -tags "exclude_graphdriver_aufs exclude_graphdriver_vfs exclude_graphdriver_devicemapper"
$ ls -l docker
-rwxr-xr-x 1 vbatts vbatts 17467068 Mar 14 14:22 docker*
```

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
runtime: no build tags for vfs driver

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
Update ubuntulinux.rst

Adding the Docker repository key fails if port 11371 not open. This would probably work for more people.
Merge pull request #4674 from vbatts/vbatts-graphdriver_build_tags

graphdriver: build tags
btrfs: build tags

Default to the same build behavior, but allow a go build tag to disable
building of the btrfs graphdriver

	go build -tags no_btrfs' ...
	$ go build
	$ objdump -S docker | grep btrfs | wc -l
	194
	$ go build -tags no_btrfs
	$ objdump -S docker | grep btrfs | wc -l
	1
	# that is a comment ;-)

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
btrfs: build tags

correct filename and make the tag more readable

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
packagers: btrfs build tag docs

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
typo

Docker-DCO-1.1-Signed-off-by: Vincent Batts <vbatts@redhat.com> (github: vbatts)
Merge pull request #4650 from vbatts/vbatts-btrfs_build_tags

btrfs: build tags
Merge pull request #4733 from vieux/3729_time_exit

add time since exit in docker ps
Merge pull request #4684 from cpuguy83/4682-do_not_sigkill_on_docker_stop

Disable automatic killing of containers when docker stop fails
Using names in docker ps --since-id/--before-id, resolves #3565

Also renames --since-id/--before-id to --since/--before and add errors
on non-existent containers.
Docker-DCO-1.1-Signed-off-by: Alexandr Morozov <lk4d4math@gmail.com> (github: LK4D4)
Add upstart nofile/noproc similar to systemd init
Docker-DCO-1.1-Signed-off-by: Brian Goff <cpuguy83@gmail.com> (github: cpuguy83)
Merge pull request #4740 from vojnovski/patch-1

Update ubuntulinux.rst
Merge pull request #4749 from cpuguy83/add_nofile_noproc_settings_to_upstart

Add upstart nofile/noproc similar to systemd init
Merge pull request #4744 from LK4D4/fix_issue_#3565

Using names in docker ps --since-id/--before-id, resolves #3565