- epa_trainer: save multifurcating tree with taxonomic labels into the refjson file
- find_mislabels: eliminate false-positives for orphan sequences (e.g. single seq of a genus)
- find_mislabels: improve handling of higher-level mislabels in many ways (might need some further work though)
read_refjson: add small util to export fields from a refjson file