Merge pull request #2577 from dotcloud/bump_v0.6.6

Bump v0.6.6
skip the volumes mounted when deleting the volumes of container.
use Binds key in hostConfig to detect volumes mounted from external.
Minor code simplification for Containers api
expunge the word 'Resource' in reference to a file/dir in a CONTAINER - that way users don't wonder how its different from a Path
add some common examples for docker images, and tell the user what -a filters out
make the docker commit help more copy&pasteable
test: put each arg in a separate string

Each arg to docker run should be placed in a separate string.
Otherwise, when starting the command via exec.Cmd, the command is
interpreted as "echo test", which can't be found.
test: fix TestCreateStartRestartStopStartKillRm

cat needs stdin opened, otherwise it dies immediately.
test: skip TestCreate on Fedora due to lxc utils bug

In the dind environment running on a Fedora host, the lxc utils get
confused by the /sys/fs/cgroup/cpuacct,cpu cgroup mount and lxc-start
fails trying to access the wrong cgroup directory.
test: 2 second timeout (not 2000)
fix container restart race condition

Finish container cleanup before setting the state to stopped.
Otherwise, for an application that exits quickly, a call to Restart
can allow Start to be called again before cleanup is done, resulting in
overritten data in the Container struct.
test: fix TestRmi race condition
test: remove extra args in TestExitCode

The extra blank argument isn't needed and confuses libvirt.
Do ont truncate ID on docker rmi
fix layer size computation: handle hard links

This change makes docker compute layer size correctly.

The old code isn't taking hard links into account. Layers could
seem like they're up to 1-1.5x larger than they really were.
fix container size computation: handle hard links

This change makes docker compute container size correctly.

The old code isn't taking hard links into account. Containers could
seem like they're up to 1-1.5x larger than they really were.
Change to documentation for AWS AMI request

Hi guys, it just might be me, but clicking the AMI from http://cloud-images.ubuntu.com/locator/ec2/ is broken to me. So I just did it via the normal Create Instance Wizard.

I just though some people might have the same issue.

Sorry if my markdown for links is screwed up, I went by the examples, since I'm used to the `[]()` traditional one.

Cheers.
speedup docker ps
Fix #2342. Harmonize information about ADD. Cross-link build info.