dict2redmine: Fixed bug where all header fields need to be preserved because columns are now filtered out instead of removed in each row

dict2redmine: Put the definition before and outside of the fields table

mappings/VegCore.csv: Moved Definition values that are actually comments into separate Comments column

dict2redmine: RedmineDictWriter: Omit empty columns from the fields table

dict2redmine: Generate an outline instead of a table so each term will be indexed in the page's table of contents

schemas/vegbien.sql: coordinates: coordinates_unique: Removed md5() around verbatimcoordinates because functions within unique indexes (other than the standard COALESCE) are not yet supported by the import algorithm

exc.py: e_msg(): Emit a warning instead of an AssertionError if e.args⁰ isn't a string, to assist in debugging malformed exceptions

mappings/VegCore.csv: sampleType: Re-sourced to bien_web.observationType

schemas/vegbien.sql: analytical_stem_view: scientificNameWithMorphospecies: Fixed bug where need to use the taxonomicname in accepted_taxonlabel instead of accepted_taxonverbatim, because taxonverbatim only contains fields provided by the data provider (in this case, TNRS), but TNRS does not provide the taxonomic name (taxon name+author), only the taxon name and author components separately

schemas/vegbien.sql: coordinates: coordinates_unique: Use md5() on verbatimcoordinates so that it doesn't cause the index row size to be exceeded. This should fix a bug in the HIBG import where long verbatimcoordinates values were causing the error 'OperationalError: index row size 2784 exceeds maximum 2712 for index "coordinates_unique"'.