v1.5.0: Cleanup and sanity checks

This release cleans up / corrects the code and documentation, particularly the README, and does some basic sanity checks to ensure long-running commands are likely to succeed prior to queuing a job for them. Avoids queuing jobs in cases where the job wouldn't do anything, ensuring callers don't get incorrect results (double-purging a batch, for instance, was resulting in an error).

v1.4.0

First public release! Tired of loading batches into an Open ONI instance using ssh and commands? Then this tool's for you! Control batch loading with just ssh commands! Also loads awardees!!! Wow!!