inputs/GBIF/raw_occurrence_record/run: table.tsv/make(): cols: also include id, institution_code, collection_code, catalogue_number

inputs/GBIF/raw_occurrence_record/run: table.tsv/make(): added filter for institution_codes in herbaria.ih (in PostgreSQL)

inputs/GBIF/raw_occurrence_record/run: table.tsv/make(): added column subset (from http://vegpath.org/twiki/bin/view/Main/ConfCall20130509#subsetting_strategy > include)

lib/sh/db.sh: mk_select: constructed queries: in ${var:+if_true} syntax, put the newline at the end of the if_true value instead of the beginning, so that each ${var:+if_true} expression starts at the beginning of a line

lib/sh/db.sh: mk_select: constructed queries: support custom columns list using $cols

lib/sh/db.sh: mk_select: constructed queries: support WHERE clause using $filter

lib/sh/util.sh: echo_stdin(): don' increase the log_level, because the input being sent to the command (which is usually a set of interpreted commands itself) is necessary to fully know what action is being performed

bugfix: lib/sh/local.sh: add a manual errexit for $() exprs by embedding them in just a var assignment (without local or declare), whose exit status will then equal the of the $(). a `|| return` also needs to be added because errexit does not work on assignment statements. this commit adds them for func_loc(), echo_func(), canon_rel_path(), set_paths(), save_cache, cached realpath(), local.sh global vars

lib/sh/util.sh: shell-variable-based caching: usage: updated alias names

web/links/index.htm: updated to Firefox bookmarks. regenerating also removed extra <a name=...> tags that were added when running index.htm.run on an already-processed index.htm.