/README.TXT: Full database import: removed unneeded `ssh -t vegbiendev.nceas.ucsb.edu exec sudo su - aaronmk` at beginning since this is performed again the first time it's needed

fix: /README.TXT: Full database import: removed erroneous line that resulted from a search-and-replace of connection commands in r12396. (it used to read "Follow the steps under Connecting to vegbiendev above, using jupiter instead". this step is now performed on the line below it.)

bin/make_analytical_db: removed remake_diff_tables() because this is now done for each datasource in inputs/input.Makefile

bugfix: schemas/vegbien.sql: schemas/vegbien.sql(): need to util.use_schema(schema_anchor) before initializing vars that use own-schema functions

inputs/input.Makefile: validate: redirect the output to the log, as for other import-related operations

inputs/input.Makefile: import: validate at the end of the import

inputs/input.Makefile: added new-style aggregating validations (`validate` target)

bin/make_analytical_db: removed no longer needed "${public}_validations" schema qualifier, now that it is in the search_path

fix: bin/vegbien_dest: added public_validations

added inputs/GBIF/_src/0001000-131106143450413.zip.header.txt, which is useful to see what fields will be available when we switch to the new GBIF export format