container.ID() cache is valid within a run until the container is removed
clarify when provisioning is done in lift
Merge pull request #84 from bjaglin/clarifydoc

clarify when provisioning is done in lift
Merge pull request #83 from bjaglin/invalidatecache

container.ID() cache is valid within a run until the container is removed
Update readme for 0.9
Remove CONTRIBUTING.
Bump version to 0.9.0
bump to avoid confusion