import_times: When there are no matching logs, exit with status 0 instead of 1 because this is a normal condition

import_times: Fixed bug where sed would wait for user input from stdin when there were no matching logs

README.TXT: Full database import: record the import times in inputs/import.stats.xls: If the row counts do not match up: Added step to get the datasource names from the log file footers

inputs/UNCC/Specimen/map.csv: cultivated: assume anything non-NULL to be cultivated, so that we err on the side of excluding possibly-cultivated specimens

inputs/UNCC/_src/_README.TXT: Added e-mail conv between Jim Matthews at Habitat Assessment and Bob Peet about the meanings of the Leaf, Flower, Fruit, and Root codes

README.TXT: Full database import: Added steps to manually back up the DB. (These steps are specific to the import process, and include filters to exclude previous imports. There are also general backup steps in the Backups > Full DB section.)

inputs/ACAD/Specimen/map.csv: institutionCode: Replace "Acadia University" with the IH code ACAD

inputs/.TNRS/data.sql: Re-ran TNRS on the test_taxonomic_names so that the sample data would contain all the accepted names under the current acceptedScientificName formula, and would not produce any entries for unscrubbed names in tnrs_input_name

schemas/vegbien.sql: tnrs_input_name: taxonlabel.taxonomicname subquery: Don't exclude taxonlabels with a matched_label_id, because matched_label_id is no longer used to indicate that a name has a scrubbed name (this was used when all of TNRS was imported at the beginning of the import)

schemas/vegbien.sql: tnrs_input_name: accepted_name subquery: Renamed to the VegCore table name AcceptedTaxon