use less reflection in command line method invocation
Add initial init scripts library, including systemd, sysvinit, upstart, and openrc
Update CHANGELOG.md
Re #2137 Note about vagrant dns in the test documentation
Update hack/release.sh process to automatically invoke hack/make.sh and bail on building/testing issues
Work around an exotic bug affecting Docker-in-Docker + systemd.
Remove spurious messages, and use proper args expansion.

Also, display some (hopefully helpful) message when no command was given.
Change bundle order, and fix shell array expansion.

I believe that it is helpful to build the binary first. That way,
if you interrupt the tests, you still get a binary to play with.
If you run the tests first and interrupt them, no binary for you!

Also, the second part of this commit is an undeniable proof that
Bash array syntax is nothing else than an elaborate troll by Bash
authors.
Merge pull request #1 from jpetazzo/cherry-on-top-of-hack-release

Cherry on top of hack release
Merge remote-tracking branch 'upstream/master'

Conflicts:
	commands.go
Add "vendor/pkg/" to .gitignore now that we "go test -i"
testing infrastructure, issue #1800: Refactor docker testing using Docker in Docker
Update hack/install.sh with some more Ubuntu-specific installation stuff while we're still on AUFS (installing linux-image-extra-$(uname -r) when we can't find AUFS to try to find AUFS)
fix wrong untag while docker rmi
Runtime: remove unused field kernelVersion
refactor utils.ParseHost with switch-case, so we can add other proto support easily
Update hack/make/ubuntu to make less ubuntu-centric packages, to fix the issue of deleting the docker group on every upgrade, to use the new init library scripts for upstart and sysvinit, and to include the dependency on iptables
Typo in host integration docs
mkimage-debootstrap.sh: Add -p option to invoke debootstrap with http_proxy.

This patch allows debootstrap to be run with the http_proxy environment
variable. This is principally useful when you're using apt-cacher and
apt-cacher-ng locally.
Merge pull request #2353 from wrouesnel/mkimage-debootstrap-improvements

mkimage-debootstrap.sh: Add -p option to invoke debootstrap with http_proxy