Etcd api
Sync with etcd instaed of the scrz authority
Support for downloading images from urls
No orphans
Use gzip instead of xz compression, it's much faster
Change packImage to work with local image id
Report runtime state (containers) back to etcd
Fix image download for local authority
Use login_tty() on the pts to make shell control work
Use recv+close instead of getContents, the later is buggy
Separate lxc-start options from the command using --
Add script to create ubuntu-12.04
Improve list-images command, add download-image
Generate meta file during image packing
Verify image content file after downloading it (checksum, size)
Add command to destroy images
Verify checksum in list-images command
Avoid downloading image if we already have it