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/*/*/map.csv for specimen tables: remapped eventDate,day,month,year to *Collected, because a general date always applies to the observation itself rather than to any parent event (specimens don't have a parent event)

bugfix: inputs/*/*/map.csv (e.g. inputs/GBIF/raw_occurrence_record_plants/map.csv): remapped author to scientificNameAuthorship rather than authors, which it had gotten incorrectly automapped to. note that the VegCore term authors has now been renamed to data_authors to avoid ambiguity, but incorrect automappings resulting from it had not yet been fixed.

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

added inputs/GBIF/map.csv, used to regenerate inputs/GBIF/raw_occurrence_record_plants/map.csv when raw_occurrence_record_plants is resubset