bin/psql_verbose_vegbien: use \\ instead of \ inside '' because this is sh, not bash

bin/psql_verbose_vegbien: changed prep-statement order to match lib/sh/db.sh psql()

bin/psql_verbose_vegbien: use `\set VERBOSITY terse` to hide stack traces/DETAIL sections of error messages, like in lib/sh/db.sh psql()

moved everything into /trunk/ to create the standard svn layout, for use with tools that require this (eg. git-svn). IMPORTANT: do NOT do an `svn up`. instead, re-use your working copy's existing files with `svn switch` (http://svnbook.red-bean.com/en/1.6/svn.ref.svn.c.switch.html).

bin/psql_verbose_vegbien: also echo queries issued by backslash commands (--echo-hidden)

bin/psql_verbose_vegbien: Run with client_min_messages = NOTICE to display notices for debugging. This is supposed to be the default, but apparently isn't.

Added psql_verbose_vegbien