0.4.0

• 84a31ce Overload the --container-image option to allow squashfs path (#11)
• c82971f Add --[no-]container-remap-root options (#9)
• fe96c8c Make a copy of the job's environment returned by the SPANK API
• b68f565 More verbose logging (#7)
• a2d8d62 Document that slurmd must be restarted