Fixes issue #49: finished CAPTCHA feature.

apps/bootstrap/protected/controllers/SiteController.php

@@ -6,6 +6,15 @@ use app\models\ContactForm;
 
 class SiteController extends Controller
 {
+	public function actions()
+	{
+		return array(
+			'captcha' => array(
+				'class' => 'yii\web\CaptchaAction',
+			),
+		);
+	}
+
 	public function actionIndex()
 	{
 		echo $this->render('index');