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).

psql_script_vegbien: Added no_query_results option to hide results of calls to void functions

vegbien_dest: Changed default $prefix to "", so that the majority of callers don't need to manually set $prefix to "" to avoid it defaulting to out_

psql_script_vegbien: Run psql_vegbien with `nice -n +5` to prevent CPU-intensive operations from slowing down the shell/UI

psql_script_vegbien: Fixed bug where needs to be run with bash instead of sh

psql_vegbien: Fixed bug where did not display command prompt when run from command line, by moving automatic setting of search_path to psql_script_vegbien. psql_script_vegbien is now used instead of psql_vegbien wherever the search_path needs to be set, so removing this functionality from psql_vegbien is not a problem.

Added psql_script_vegbien