Rename directory to better suit the moving time.

Kind of also fix the apache conf, but not quite.

old-projects/algo/pages/indexes.php

@@ -0,0 +1,9 @@
+<?php
+/* This file keeps an index of the titles of current pages
+   and gives them to the JavaScript environment when requested */
+$u['Welcome'] = 'start.htm';
+$u['Help'] = 'help.htm';
+$u['Calculator'] = 'calc.htm';
+$u['Notes'] = 'notes.php';
+$u['About'] = 'about.htm';
+?>