add last version
change tag -> repo name in build usage
use http://get.docker.io/latest
docker.upstart: avoid spawning a `sh` process

start script / end script create an intermediate sh process.
docker.upstart: use the same start/stop events as sshd

Is probably more solid
add server.ContainerTop, server.poolAdd and ser.poolRemove tests
Add CompareConfig test
prevent any kind of operation simultaneously
add Volumes and VolumesFrom to CompareConfig
add VolumesFrom to MergeConfig, and test
+ Runtime: inject dockerinit at /.dockerinit instead of overwriting /sbin/init. This makes it possible to run /sbin/init inside a container.
Merge branch 'master' into add_last_version-feature
handle -dev
add ps args to docker top
bump api version to 1.4
Merge branch 'master' into 1237-improve_docker_top-feature

Conflicts:
	docs/sources/api/docker_remote_api.rst
change permissions of initLayer to be readable by non-root users
rebase master
Add ID to JSONMessage in pull
Use goroutines to pull in parallel
If multiple images pulled at the same time, each progress is displayed on a new line
improve client output