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
make the docker commit help more copy&pasteable
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.
Fix #2342. Harmonize information about ADD. Cross-link build info.
Merge pull request #2717 from metalivedev/2342-uploadingcontext

Fix #2342. Harmonize information about ADD. Cross-link build info.
Merge pull request #2772 from bitoiu/patch-3

Change to documentation for AWS AMI request
Merge pull request #2731 from SvenDowideit/docker-commit-doc

make the docker commit help more copy&pasteable
Merge pull request #2304 from unclejack/fix_layer_size_computation

Fix layer size computation: handle hard links correctly
Merge pull request #2488 from viirya/fix_container_volumes_delete

Skip the volumes mounted when deleting the volumes of container.
Merge pull request #2678 from cxmcc/minor

Minor code simplification for Containers api
Refactor State to be 100% thread safe
Merge pull request #2798 from dotcloud/fix_state_race

Refactor State to be 100% thread safe
Merge branch 'master' into bump_v0.6.7
Bump version to v0.6.7
Merge pull request #2812 from dotcloud/bump_v0.6.7

Bump v0.6.7