add --releasever=/ to mkimage-yum.sh

I didn't realize the commit required a Docker-DCO so it failed the travis-ci build. So I removed the commit from my forked repo. Now it looks like there is a pull request with no commit. So here it is again:

Needed to add '--releasever=/' flag to run yum groupinstall on Centos7 (didn't try on anything else). This snippet from yum man page explains why:

```
Note: You may also want to use the option --releasever=/ when creating the installroot as otherwise the $releasever value is taken from the rpmdb within the installroot (and thus.  will  be  empty,  before  creation).
```

Docker-DCO-1.1-Signed-off-by: Matt Schurenko <matt.schurenko@gmail.com> (github: mschurenko)
Adding self to various maintainers files.

Docker-DCO-1.1-Signed-off-by: Jessica Frazelle <jess@docker.com> (github: jfrazelle)
Implementing IPv6 functionality for ipallocator

Closes #6975

Signed-off-by: Malte Janduda <mail@janduda.net>
Preserve extended attributes and acls on archlinux build

Failure to do this means that file capabilites are not preserved in the image.
Ping fails to work as a non-root user if cap_net_raw is capability is not set

Signed-off-by: Dan Griffin <dgriffin@peer1.com>
docker save: Do not save to a terminal.

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
install.sh: Fix for Amazon's Linux AMI

Use /etc/os-release to determine distro

Contents of /etc/os-release on Amazon Linux AMI 2014.09:
NAME="Amazon Linux AMI"
VERSION="2014.09"
ID="amzn"
ID_LIKE="rhel fedora"
VERSION_ID="2014.09"
PRETTY_NAME="Amazon Linux AMI 2014.09"
ANSI_COLOR="0;33"
CPE_NAME="cpe:/o:amazon:linux:2014.09:ga"
HOME_URL="http://aws.amazon.com/amazon-linux-ami/"

Signed-off-by: Amit Bakshi <ambakshi@gmail.com>
Signed-off-by: Jessica Frazelle <jess@docker.com>
check ID in os-release instead

Docker-DCO-1.1-Signed-off-by: Jessica Frazelle <jess@docker.com> (github: jfrazelle)
Add mention of e2fsprogs to runtime dependencies.

Signed-off-by: Marc Tamsky <mtamsky@gmail.com> (github: tamsky)
make http usage for registry explicit

Docker-DCO-1.1-Signed-off-by: Cristian Staretu <cristian.staretu@gmail.com> (github: unclejack)

Conflicts:
	daemon/config.go
	daemon/daemon.go
	graph/pull.go
	graph/push.go
	graph/tags.go
	registry/registry.go
	registry/service.go
Refactor IsSecure change

Fix issue with restoring the tag store and setting static configuration
from the daemon. i.e. the field on the TagStore struct must be made
internal or the json.Unmarshal in restore will overwrite the insecure
registries to be an empty struct.

Signed-off-by: Michael Crosby <michael@docker.com>

Conflicts:
	graph/pull.go
	graph/push.go
	graph/tags.go
Expand documentation for --insecure-registries

Signed-off-by: Michael Crosby <michael@docker.com>
Don't hard code true for auth job

Signed-off-by: Michael Crosby <michael@docker.com>

Conflicts:
	registry/service.go
Do not verify certificate when using --insecure-registry on an HTTPS registry

Signed-off-by: Tibor Vass <teabee89@gmail.com>

Conflicts:
	registry/registry.go
	registry/registry_test.go
	registry/service.go
	registry/session.go
Setting iptables=false should propagate to ip-masq=false

Signed-off-by: Jessica Frazelle <jess@docker.com>
Fix more missing HOME references

Signed-off-by: Andrew Page <admwiggin@gmail.com>
Avoid fallback to SSL protocols < TLS1.0

Signed-off-by: Tibor Vass <teabee89@gmail.com>

Docker-DCO-1.1-Signed-off-by: Daniel, Dao Quang Minh <dqminh89@gmail.com> (github: dqminh)

Conflicts:
	registry/registry.go
builder: fix escaping for ENV variables.

Docker-DCO-1.1-Signed-off-by: Erik Hollensbe <github@hollensbe.org> (github: erikh)
Don't write pull output to stdout on container creating

Fixes #8632

Signed-off-by: Alexandr Morozov <lk4d4@docker.com>
Clean volume paths
Fixes #8659

Signed-off-by: Brian Goff <cpuguy83@gmail.com>
Use dual-stack Dialer when talking to registy

Signed-off-by: Gleb M. Borisov <borisov.gleb@gmail.com>