Main script to configure Autometa database dependencies.

optional arguments:
  -h, --help            show this help message and exit
  --config CONFIG       </path/to/input/database.config> (default:
  --dryrun              Log configuration actions but do not perform them.
                        (default: False)
  --update-all          Update all out-of-date databases. (default: False)
  --update-markers      Update out-of-date markers databases. (default: False)
  --update-ncbi         Update out-of-date ncbi databases. (default: False)
  --check-dependencies  Check database dependencies are satisfied. (default:
  --no-checksum         Do not perform remote checksum comparisons to validate
                        databases are up-to-date. (default: False)
  --nproc NPROC         num. cpus to use for DB formatting. (default: 2)
  --out OUT             </path/to/output/database.config> (default: None)

By default, with no arguments, will download/format databases into default
databases directory.