Use additional decorator in RequestFactory to pass meta headers to registry
Fixed: ImagePull in runtime test
use libffi-dev, don't build it from sources
Removed duplicate mercurial install command
Use correct upstart script with new build tool
Bump to v0.6.1
Merge pull request #1648 from dotcloud/bump_0.6.1

Bump to 0.6.1
Merge release 0.6.1 back to master

Conflicts:
	VERSION