More SQL command (drop table, drop database)

delete, select & insert upgraded 
More utility function (node to array, arrayToNode)
XMLDB special move command
PHP Unit Test

simpletest/test/support/test1.php

@@ -0,0 +1,7 @@
+<?php
+class test1 extends UnitTestCase {
+	function test_pass(){
+		$this->assertEqual(3,1+2, "pass1");
+	}
+}
+?>