inputs/NVS/*/map.csv: Taxon Growth Form: use new _lowercase() to avoid needing to manually map each value that is already valid but just needs to be lowercased

schemas/util.sql: added _lowercase()

added inputs/CTFS/ERD/ VegPath location

added inputs/MO/_src/_README.TXT with warning that the refresh provided to us is missing several columns from the original extract: CollectionCode, CatalogNumber, IndividualCount

schemas/VegCore/VegCore.ERD.mwb: reduced MaxColumnsDisplayed to 10 to prevent wide tables from taking up too much space in the ERD. this was a big problem in the VegBIEN ERD, which we are hoping to prevent in the VegCore ERD as first-class columns get added to the tables. note that it's very important to ensure that the first-class columns are sorted in importance order, so that the 10 most important are visible in the ERD.

schemas/VegCore/VegCore.ERD.mwb: renamed specimen_holder_institution to specimenholder_institution because specimenholder is one word

lib/sql_io.py: put_table(): Calling wrapper function: adding pkey or index on the resulting table: don't display warning if a pkey can't be added, because this is actually a legitimate situation when the called function is set-returning and can return multiple rows for one input. having this as a warning results in spurious warnings in the automated tests (which look confusingly like ignored errors because Python warnings include debugging context information). e.g. `make inputs/Madidi/IndividualObservation/test.by_col.xml` causes this error in the sourcelist->sourcename splitting step (which of course can produce multiple specimenholder institutions)....

bugfix: lib/sql.py: parse_exception(): typed_name_re (used by MissingCastException, etc.): don't require "" around the value, because function names in "function does not exist" exceptions are (now?) output without them. this exception did not occur in the last import, but does occur in the automated testing and when running the associated query in pgAdmin (in both Linux and Mac OS X).

bugfix: /Makefile: apache-Linux: use the standard apt-get syntax for Makefiles (`-sudo apt-get --yes install`) instead of just `apt-get install`

/Makefile: added Apache 2.4 installation