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).

import_date: Added note that Mac and Linux differ in the order they sort the logs in

import_date: Added note that the time this outputs is the time the first special input finished importing. The import itself generally starts a few minutes before that, and the exact time is in that import's public schema comment.

import_date: Removed duplicate Usage message at top of file, which is repeated in the Usage message provided when the program is run with no arguments

Added import_date