added changelog file

CHANGELOG

@@ -2,7 +2,7 @@
  * file CHANGELOG
  *
  * @package     SemmelstatzR
- * @version     $Rev:$
+ * @version     $Rev$
  * @since       1.0.0
  * @author      SEM-Team
  * @copyright   (c)2011 SEM-Team
@@ -17,12 +17,12 @@
  * 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 General Public License for more details.
+ * GNU General Public License for more details
  * 
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.  
  *
- * $Id:$
+ * $Id$
  * 
  */