SystemsLab 0.0.90

Fixed

• Fixed an issue where duplicate artifacts could be uploaded with the same name and type while attached to the same experiment, job, or context.
• Fixed an issue where installing the systemslab-nss package would clobber some of the host databases in /etc/nsswitch.conf.
• Jobs currently running on an agent that is being unregistered will now be marked as lost (and retried) instead of being cancelled.