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* Change default repo name to "octofludb"
* Replace docopt with argparse
* Renamed all `load_*` commands to `mk_*`. The commands are not "loading" data
into the database but only creating turtle files
* Change name to octofludb
* Add query and upload subcommands
* Remove `sameAs` relationship between `Strain` tokens. This relationship was
equating strain names (e.g. `A/Michigan/288/2019`) with epiflu isolate ids
(e.g., `EPI_ISL_381463`). However, one strain name may be shared by multiple
epiflu isloate ids, so the sameAs relationship is incorrect.