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/*/*/header.csv: Regenerated for new staging tables format (which now includes a row_num column on every CSV table), as part of reinstalling staging tables

input.Makefile: Staging tables installation: `%/install: %/create.sql`: Don't add a row number column to the created table because it is now added automatically to the temp table by column-based import (row-based import now also does not require a pkey for DB inputs)

inputs/CTFS/: Added TaxonOccurrence/ and its joined tables