Made row #s 1-based to the user to match up with the staging table row #s

bin/map: Fixed bug where limit passed to sql.select() was end instead of the # rows, causing extra rows to be fetched when start > 0. Documented that row #s start with 0.

Removed no longer needed csv2ddl

input.Makefile: Staging tables: import/install-%: Use new csv2db instead of csv2ddl/$(psqlAsBien), because it handles translating encodings properly

Added csv2db to load a command's CSV output stream into a PostgreSQL table

schemas/postgresql.Mac.conf: Set unix_socket_directory to the appropriate Mac OS X dir, since otherwise, the socket is apparently not created and `make reinstall_db` doesn't work

main Makefile: VegBIEN DB: db: Set LC_COLLATE and LC_CTYPE explicitly, to make it easier to change them

Added ProgressInputStream

exc.py: print_ex(): Added plain option to leave out traceback

main Makefile: VegBIEN DB: db: Use template0 to allow encodings other than UTF-8. Because template0 doesn't have plpgsql on PostgreSQL before 9.x, add "CREATE PROCEDURAL LANGUAGE plpgsql;" manually in schemas/vegbien.sql.make, and filter it back out on PostgreSQL after 9.x using db_dump_localize.