Moved legacy code into archive, ready for a new rapid(?) prototype.

I may regret doing this!

unit-tests/empty-list.sh

@@ -1,19 +0,0 @@
-#!/bin/bash
-#
-# File:   empty-list.sh.bash
-# Author: simon
-#
-# Created on 14-Aug-2017, 15:06:40
-#
-
-expected=nil
-actual=`echo "'()" | target/psse 2>/dev/null | tail -1`
-
-if [ "${expected}" = "${actual}" ]
-then
-    echo "OK"
-    exit 0
-else
-    echo "Fail: expected '${expected}', got '${actual}'"
-    exit 1
-fi