bin/repl: added unescape_html() filter function, which can be specified as the replacement string

bin/repl: support Unicode characters in the matched portion of the string

web/links/index.htm: updated to Firefox bookmarks. `screen`: scrollback: added link to our wiki page on persistent shells, which are a better way to support reconnecting.

web/links/index.htm: updated to Firefox bookmarks. added bookmarks about the `screen` command, especially how to access the scrollback. resorted several folders alphabetically.

inputs/GBIF/raw_occurrence_record_plants/run: table.tsv/make(): documented how to view the runtime when using `screen` (press Ctrl-A [ , use up-arrow, and then press Esc to leave copy mode)

inputs/GBIF/raw_occurrence_record_plants/run: herbaria_filter/make(): use new ih_herbarium table instead of the herbaria_filter.ih.csv_ file directly

inputs/GBIF/raw_occurrence_record_plants/run: added ih_herbarium/make(), which stores the IH herbaria

bugfix: inputs/GBIF/raw_occurrence_record_plants/run: table/make(): also filter out rows with a non-plant family (as described at http://vegpath.org/wiki/2013-06-06_conference_call#GBIF-subsetting-fix-raw_occurrence_record-filter-formula), since some institutions have both animal and plant rows, even though they are in IH or in the 80% list. (note that NULL families are OK.)

*{.sh,run}: use mysql instead of mysql_ANSI because mysql is now an alias to mysql_ANSI (since ANSI mode still supports key MySQL features, like `` quotes)

inputs/GBIF/raw_occurrence_record_plants/run: table.tsv/make(): documented that incremental output is provided right away with --quick (unbuffered), but takes awhile to become visible in Macfusion sshfs. this can be tested with `while true; do stat inputs/GBIF/raw_occurrence_record_plants/table.tsv; sleep 2; done` running concurrently with `./inputs/GBIF/raw_occurrence_record_plants/run table.tsv/make` on vegbiendev:/home/bien/svn .