*{.sh,run}: use new begin_target instead of `echo_func; set_make_vars`

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).

copyright scrub: inputs/: removed data provider-owned schema and documentation files, which are not BIEN copyright and should not be part of what is submitted for open-sourcing. these files will remain accessible via the web interface (fs.vegpath.org), but will not be in the repository.

added inputs/GBIF/_MySQL/.rsync_ignore with filters from /README.TXT > Maintenance > to synchronize vegbiendev, jupiter, and your local machine. these filters will now be used with bin/sync_upload in addition to the periodic backup commands.

added inputs/GBIF/_MySQL/GBIFPortalDB-2013-02-20.data.0.preamble.sql

*{.sh,run}: use simpler .rel() instead of `. "$(dirname "${BASH_SOURCE<sup>0</sup>}")"/...` for relative includes

bugfix: inputs/GBIF/_MySQL/MySQL_schema, MySQL_data: sed: put {} commands on their own line to work on Mac

bugfix: inputs/GBIF/_MySQL/GBIFPortalDB-2013-02-20.data.sql.run: ^.preamble.sql/make(): need to run set_make_vars even though the make vars are not used, because set_make_vars sets $_remake, which is needed by self_make

bugfix: *run: overriding targets: use new self_make to properly progagate the $remake flag to the overridden target, so that the target itself is not skipped

inputs/GBIF/_MySQL/run: documented steps to reload GBIF MySQL