Adding direct reference to contribution guidelines
add loading message
Added escape sequence to tutorial
proper resolv.conf parsing
Keep linebreaks and generalize code
Make sure 'Ghost' container is available with allocated IP
Some fixes for MongoDB example
Use additional decorator in RequestFactory to pass meta headers to registry
Bump to 0.6.0
Fixed: ImagePull in runtime test
Update docker_remote_api.rst
use libffi-dev, don't build it from sources
return error if at least one container fails to start

This makes docker start exit with exit code 1 if at least one container
didn't start. This also prints an error at the end.
Updated the docs to reflect we no longer use Launchpad and host our own repository.
Merge pull request #1628 from dotcloud/bump_0.6.0

Bump to 0.6.0
Merged 0.6.0 release back to master
Merge pull request #1627 from shin-/registry_metaheaders

Pass "meta" headers in API calls to the registry
Merge pull request #1637 from dhrp/change-docs-ubuntu-sources

Updated the docs to reflect we no longer use Launchpad and host our own
Merge pull request #1563 from dotcloud/1073_add_loading_message

* Runtime: Add loading containers message in no debug
Merge pull request #1635 from unclejack/fix_main_dockerfile

Fix libffi build failure for the main Dockerfile