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/: removed SALVIAS-CSV, because this is a sample datasource which was only there to test the mapping process. it should not be adding records that duplicate SALVIAS, nor should it take up maintenance effort (switching to new-style import, updating to match SALVIAS, etc.).

added inputs/*/*/header.csv for CSV inputs, which are now generated by inputs/input.Makefile %/install