input.Makefile: Mapping: If table subdir contains no input files, print warning instead of aborting. This situation occurs when renaming a version-controlled directory, whose previous version persists as an empty dir until committing.

input.Makefile: Mapping: Removed no longer used $(<in) and test for it in $(map)

input.Makefile: Mapping: $(map): Removed no longer used test for $(mapEnv)

sql.py: run_query(): Exception handling: Fixed bug where PostgreSQL 9.1 PL/Python errors have a different format than PostgreSQL 9.0 which needs to be supported separately. This format was already supported in sql_gen.plpythonu_error_handler, but also needed to be supported for exceptions that propagate back to the client.

inputs/SALVIAS-CSV/src/: Removed source files because they shouldn't be under version control. (They are synchronized via `make inputs/download`.)

inputs: Moved src files into VegCSV subfolders (https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/VegCSV#CSV-representation), with table suffixes removed, using the steps at <https://projects.nceas.ucsb.edu/nceas/projects/bien/wiki/VegCSV_subfolders>

util.py: dict_subset(): Fall back to using dict when OrderedDict is not available, in order to support making the maps on nimoy

mappings/: Removed now-inaccurate ".stems" suffix from VegX-VegCore.stems.csv, which actually applied to all tables

mappings/: Removed no longer used ".specimens" suffix from maps, which is now the same for all maps

mappings/: Removed no longer used plots, organisms, and stems maps, which were copies of the specimens map