this is distributed under the LGPL v3 -- add copyright information

db.class.php

@@ -1,4 +1,22 @@
 <?php
+/*
+    Copyright (C) 2008-2011 Sergey Tsalkov (stsalkov@gmail.com)
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU Lesser General Public License for more details.
+
+    You should have received a copy of the GNU Lesser General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
 class DB
 {
   public static $debug = false;