bugfix: lib/sh/util.sh: sed: must use alias instead of function because function causes segfault in redir() subshell when used with make.sh make() filter (may be bug in bash?). this involves translating `unset LANG` to `env LANG=` (`env -u` to unset a var isn't supported on Mac, but fortunately sed treats LANG="" the same as unset LANG).

archived planning/goals/BIEN3_derived_data_products.docx and replaced with symlink to new BIEN_3_derived_data_products_NormalizedDB_only.docx

added planning/goals/BIEN_3_derived_data_products_NormalizedDB_only.docx from Brad's e-mail

bugfix: lib/sh/util.sh: sed: unset LANG to avoid "illegal byte sequence" errors on invalid UTF-8 for LANG=*.UTF-8. these occur e.g. with MySQL data that is in Latin-1.

lib/sh/util.sh: sed: use function instead of alias so that env can be set up before calling sed

planning/workflow/bien3_architecture.pptx: updated to Martha's revised version from 2013-7-3

lib/runscripts/table.run: map_table(): run map_table repeatedly until no more renames are made: added command to do this

lib/runscripts/table.run: map_table(): documented that collisions may prevent all renames from being made at once. if this is the case, map_table must be run repeatedly until no more renames are made. collisions may result if the staging table gets messed up (e.g. due to missing input columns in map.csv).

inputs/*/*/map.csv for CSV tables with a row_num column: added missing row_num entry, which is needed by the staging table column renaming to make the order of the map.csv columns match the order in the staging table

bugfix: inputs/*/Source/map.csv: added missing row_num entry, which is needed by the staging table column renaming to make the order of the map.csv columns match the order in the staging table. the staging table column renaming is now used by all Source tables.