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).

inputs/VegBank/vegbank.~.utils.sql: plantconcept_plantnames(): Made function STABLE instead of VOLATILE because it does not modify any tables

inputs/VegBank/vegbank.~.utils.sql: plantconcept_plantnames(): Use SQL SELECT query and WITH clause (http://www.postgresql.org/docs/8.4/static/queries-with.html) instead of temp table, because PostgreSQL does not support using temp tables inside functions that are called repeatedly (http://archives.postgresql.org/pgsql-general/2006-02/msg00516.php; it results in an "out of shared memory" error)

inputs/VegBank/vegbank.~.utils.sql: Removed hardcoded schema name, which is set dynamically by input.Makefile using `SET search_path`

inputs/VegBank/vegbank.~.utils.sql: Added plantconcept_plantnames()

inputs/VegBank/vegbank.~.utils.sql: plantconcept_ancestors(): Made function STABLE instead of IMMUTABLE because it accesses DB tables

inputs/VegBank/vegbank.~.utils.sql: plantconcept_ancestors(): Renamed ancestor_id output param to plantconcept_id for clarity and so it can be directly USING-joined with plantconcept on plantconcept_id

inputs/VegBank/: Added vegbank.~.utils.sql (which runs after vegbank.sql), for use by tables' create.sql scripts