fix: inputs/HVAA/Specimen/postprocess.sql, map.csv: monthCollected/dayCollected: fix indefinite dates (which aren't supported by Postgres), as decided by Bob (https://docs.google.com/spreadsheets/d/1PI8n0CRttN7ttsXs5qfh5OFFzSoAfJj0gSbylgX6vj4/edit#gid=0)
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).
inputs/HVAA/: switched to new-style import, using the steps at wiki.vegpath.org/Adding_new-style_import_to_a_datasource
inputs/HVAA/Specimen/: translated multi-column filters to postprocessing derived columns, using the steps at wiki.vegpath.org/Adding_new-style_import_to_a_datasource#Translating-filters-to-postprocessing-derived-columns
