*{.sh,run}: runscript targets: use begin_target instead of echo_func so the target name is properly echoed. note that this requires using with_rm so that $rm is properly progagated to applicable invoked targets. (previously, $rm was progagated to all invoked targets. note that with_rm only works inside a runscript target that starts with begin_target.)

lib/runscripts/file.pg.sql.run, schema.pg.sql.run: support custom options to pg_dump in $@

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).

added lib/runscripts/file.pg.sql.run and use it in schema.pg.sql.run

added lib/runscripts/schema.pg.sql.run and use it in inputs/.TNRS/schema.sql.run