moved lib/*.run into runscripts/ subdir so runscripts are grouped together and easier to find rather than being scattered throughout lib/

bugfix: lib/util.sh: canon_rel_path (): use $(pwd -P) instead of $PWD because symlinks are resolved by realpath (readlink -f), so they also need to be resolved in the current dir, but $PWD does not contain the symlinks-resolved version of the current dir

inputs/GBIF/MySQL_export: use lib/util.sh instead of util.run now that the non-runscript-specific functions have been separated out into it. this ensures that MySQL_export is not unintentionally treated as a runscript (which functions differently from a normal shell script).

/.htaccess: use canonical URL without symlinks

added /.htaccess to create the right self-referential URL since / is outside the document root (linked from /vegbiendev/fs/)

schemas/VegCore/VegCore.ERD.mwb: TNRS taxonomic scrubbing steps: moved labels to the start of the arrow they label, so that the user can more easily follow the arrows from step to step by looking for an outward-pointing arrow with a label

added inputs/GBIF/_MySQL/MySQL.data.sql.gz.md5

bugfix: lib/common.Makefile: Compression: %.gz <-> %: only run command if target does not exist, to avoid overwriting the target when the compressed or uncompressed version is newer than it. the difference in mtimes can arise when one file is created after the other, and should not cause the opposite operation to be performed to try to make the other file up-to-date (leading to an infinite back-and-forth of creating one file from the other).

web/links/index.htm: updated to Firefox bookmarks. the VegPath link now includes the new favicon.

added web/favicon.ico generated from schemas/BIEN_logo.png