input.Makefile: Testing: diffing test outputs: Ignore changes in whitespace, due to e.g. different indent levels. This facilitates accepting tests when an element has been nested inside another element (or unnested), by showing only the opening and closing tags of the new outer element.

dicts.py: DictProxy: Fixed bug where default value for inner param needed to be created in the constructor, or else every default instance would use and modify the same dictionary

db_xml.py: put(): wrap_e(): Call augment_error() to add the current node to the error message

db_xml.py: put(): Raise an error if there are multiple fields with the same name, instead of silently overwriting the first with the second. This generally indicates the need to use `:[@merge=1]` on the fields in question.

dicts.py: Added OnceOnlyDict and helper exception KeyExistsError

dicts.py: DictProxy: Added default value for inner param to facilitate creating empty wrapped dicts

bin/map: out_is_db: row-based mode: Debug-log the processed XML tree produced by xml_func.process()

sql_io.py: put_table(): Fixed bug where Missing mapping for NOT NULL column errors should actually be warnings because sometimes the mappings include extra tables which aren't used by the dataset

sql_io.py: put_table(): Fixed bug where Missing mapping for NOT NULL column errors should actually be warnings because sometimes the mappings include extra tables which aren't used by the dataset

schemas/vegbien.sql: aggregateoccurrence: Added UNIQUE INDEX that makes an aggregateoccurrence unique within a taxonoccurrence. When the sourceaccessioncode isn't specified (as for individual organisms data, where this goes in plantobservation and taxonoccurrence), this ensures a 1:1 relationship between aggregateoccurrence and taxonoccurrence.