SystemsLab 0.0.81

Added

• (new command) systemslab export context allows exporting an entire context to a tarball.
• (new command) systemslab import context allows importing a previously exported context to a new systemslab instance.
• Which metrics are emitted in real time from a job run is now filtered automatically. This is controlled by the metrics config key in agent.toml.

Fixed

• Attempting to submit an experiment with invalid fields in the specification will now result in an error instead of those fields being silently ignored.