* code for task#808.

* add bin of check demo data.

bin/checkDemoData.php

@@ -0,0 +1,14 @@
+<?php
+include("../config/my.php");
+$demoSql = file("../db/demo.sql");
+$output  = '';
+foreach($demoSql as $sql)
+{
+    if(strpos($sql, 'INSERT') !== false and
+       strpos($sql, $config->db->prefix . 'config')  === false and
+       strpos($sql, $config->db->prefix . 'company') === false and
+       strpos($sql, $config->db->prefix . 'group')   === false
+       ) $output .= $sql;
+}
+file_put_contents("../db/demo.sql", $output);
+