The most significant change in this release is that the spec has been split into its own repository (https://github.com/appc/spec), and significantly updated since the last release - so many of the changes were to update to match the latest spec.

Numerous improvements and fixes over v0.1.0:

• Rocket builds on non-Linux (in a limited capacity)
• Fix bug handling uncompressed images
• More efficient image handling in CAS
• mkrootfs now caches and GPG checks images
• stage1 is now properly decoupled from host runtime
• stage1 supports socket activation
• stage1 no longer warns about timezones
• cas now logs download progress to stdout
• rkt run now acquires an exclusive lock on the container directory and records the PID of the process