mappings/VegCore-VegBIEN.csv: mapped subspecies to new taxonverbatim.subspecies for easier access by validations queries

moved everything into /trunk/ to create the standard svn layout, for use with tools that require this (eg. git-svn). IMPORTANT: do NOT do an `svn up`. instead, re-use your working copy's existing files with `svn switch` (http://svnbook.red-bean.com/en/1.6/svn.ref.svn.c.switch.html).

bugfix: inputs/CTFS/TaxonOccurrence*/map.csv: things mapped to taxonObservationID: remapped to taxonOccurrenceID since taxonObservationID is not mapped to anything in VegBIEN (denormalized VegCore doesn't distinguish between taxon occurrences and taxon observations of them)

bugfix: inputs/CTFS/import_order.txt: added *.src so that these would be installed under new-style import as well. this means that their columns will now be automapped, requiring the names to be renamed to VegCore names in */create.sql. note that VegCore taxonOccurrenceID has been renamed to taxonObservationID since this was last run.

fix: bin/map: put template: comment out the "Put template:" label so that the output is valid XML, and displays properly in a browser rather than showing a syntax error

bugfix: mappings/VegCore-VegBIEN.csv: nest all taxonoccurrences inside a stratum event, so that the parent locationevent is always fully populated before child locationevents point to it. (previously, a stub parent event was created when the child event was imported first, which blocked the fully-populated parent event from being inserted later on.) this uses auto-folding (for VegBank/CVS) and auto-forwarding (for other datasources) to prune empty stratum events for taxonoccurrences that don't have strata. (see wiki.vegpath.org/Auto-folding, wiki.vegpath.org/Auto-forwarding for more info about these normalization techniques.) note that the inserted row counts stay exactly the same for all datasources except VegBank (which was being fixed), indicating that this signficant change to the mappings did not change the semantics of the import of taxonoccurrences.

inputs/*/*/test.xml.ref: updated source.shortname for new datasource name, which now starts out with .new suffix

inputs/CTFS/: switched to new-style import, using the steps at wiki.vegpath.org/Adding_new-style_import_to_a_datasource

inputs/*/*/map.csv: added distinguishing #... suffix (e.g. UNUSED#institutionID) to the special terms OMIT, PRIVATE, UNUSED (VegCore.vegpath.org#Special-terms) to avoid creating a collision in the staging table renaming

inputs/CTFS/*/map.csv: added *.src.row_num from joined tables so that the map.csv input columns would match the staging table. this is needed for the staging table column renaming, which is positional rather than name-based to work with any existing column name.