pg_dump_vegbien: Added opts env var to allow specifying options to a Makefile command, which does not take positional arguments

README.TXT: Schema changes: files to update with any renamings: Removed tnrs_db because that is now abstracted from the schema through the tnrs_input_name view. Note that PostgreSQL will automatically update tnrs_input_name with any table or column renames, which is the significant advantage of using a view rather than a hardcoded query.

schemas/vegbien.sql: tnrs_input_name: Use DISTINCT instead of DISTINCT ON because there is only one column

tnrs_db: Use new tnrs_input_name view to avoid hardcoding changing schema information

inputs/test_taxonomic_names/test_scrub, README.TXT: Documented that `make schemas/public/reinstall` must come after TNRS restore to recreate the tnrs_input_name view, which has a dependency on the TNRS schema

schemas/vegbien.sql: Added tnrs_input_name view for use by tnrs_db

schemas/vegbien.sql: taxonlabel, taxonverbatim: Updated comments for new taxonlabel/taxonverbatim split

schemas/vegbien.sql: taxonlabel_update_ancestors(): Use aliased types (http://www.postgresql.org/docs/8.3/static/plpgsql-declarations.html#PLPGSQL-DECLARATION-TYPE) where possible

schemas/vegbien.sql: taxonlabel_update_ancestors(): Adding new parent's ancestors: Change unique_violations to warnings so they don't abort the import. unique_violations should never happen unless there are cycles of two or mode nodes, but they seem to be happening nevertheless, so this will provide a workaround to that problem.

inputs/import.stats.xls: Updated import times