Updated ubergraph_iri_stem_to_prefix_map with additional IRI stems.
Bug fix: chemicals.write_pubchem_ids() was failing on reaching the end of the file. Rewrote the code to account for this possibility.
Updated the UMLS leftover output to include the ic, clique_identifier_count, taxa, shortest_name_length and preferred_name fields (still doesn't fix #126)
Changed PubChem Compound download from FTP to HTTPS (using wget).
Added a --timestamping option for wget recursive downloads to try to prevent re-downloading PubMed files if it hasn't changed.
Updated method to create a prefix map from curies.
chemicals.write_pubchem_ids()was failing on reaching the end of the file. Rewrote the code to account for this possibility.ic,clique_identifier_count,taxa,shortest_name_lengthandpreferred_namefields (still doesn't fix #126)--timestampingoption for wget recursive downloads to try to prevent re-downloading PubMed files if it hasn't changed.curies.Should be merged after PR #335.