version_check changed to only check when adaptors are instantiated or not at all if special file exists

Added coding_gene() and coding_transcript() methods to pull data from regulatory_factor_coding table.

Updated for regualtory_factor_transcript->regulatory_factor_coding schema change. Also added some data to allow testing of regulated_genes methods

load_registry_from_db will now only load the databases that match the correct software version and not necessarily the latest versions

a bug fix to column allele_string in transcript_variation table. The error is caused by a deletion, such as TTG/- in CTTGTT so the allele_string should be LV/L rather than LV/-

deprecated throw

replaced do with eval require for better error messages. Added optional argument to load_all to write to stderr what configuration file is being used. This was always reported before but defualt is now not to