fixed image id parsing, multiple versions of docker
fixed container ip parsing, inspect returns an array in newer versions
fixed ip address parsing, IpAddress -> IPAddress :/
Update test-kitchen dependency to 1.0.0.alpha7
fixed rm container, need to stop a running container first
driver version bump
Merge pull request #6 from gregf/update-testkitchen-dependency

Update test-kitchen dependency to 1.0.0.alpha7
specify host (public) ports for forward mappings
driver config option to remove images, default to false, faster builds
driver version bump