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).

**/new_terms.csv, unmapped_terms.csv updated (using `make missing_mappings`)

input.Makefile: Maps validation: %/new_terms.csv: Include the entire map spreadsheet row, so that each new term is listed together with its mapping. This facilitates adding new mappings to mappings/Veg+-VegCore.csv directly from any new_terms.csv. Note that the use of `sort -u` (in lib/mappings.Makefile) causes multiline comments to be separated, leading to spurious lines for each multiline comment line.

inputs/: Generated combined unmapped_terms.csv, new_terms.csv for all inputs