inputs/CTFS/maps/: Removed unneeded src.organisms.csv since there is an way to deal with it not existing in input.Makefile

inputs/CTFS/maps/: Removed unneeded .VegX.plots.csv.last_cleanup

inputs/*/maps/src.*.csv: Standardized line endings to \n

input.Makefile: Maps building: maps/$(via).%.full.csv: Added the src map as a prerequisite so it would be rebuilt when the src map changes. This is possible now that every datasource has at least an empty src map. (An empty src map is now treated the same way as a non-existing one.)

inputs/*/maps/src.*.csv: Removed extraneous quotes around fields, which are added by Excel but not by Python

inputs/*/maps/src.*.csv: Removed extraneous quotes around fields, which are added by Excel but not by Python

inputs/CTFS: Added empty maps/src.organisms.csv so that every table of every datasource has a src map

README.TXT: Datasource setup: Documented how to populate the src/ subdir with input data

Added inputs/CVS/

sql_gen.py: plpythonu_error_handler: Translate specific Python exception types to PostgreSQL error codes (ValueError -> data_exception) instead of assuming everything is a data_exception. When removing the PL/Python prefix, preserve the Python exception class in a DETAIL message. Support non-PL/Python internal_errors by re-raising them.