added email change strategies

lib/User/Factory/TokenFactory.php

@@ -37,6 +37,20 @@ class TokenFactory
         return $token;
     }
 
+    /**
+     * @param $userId
+     *
+     * @return Token
+     */
+    public static function makeConfirmOldMailToken($userId)
+    {
+        $token = self::make($userId, Token::TYPE_CONFIRM_OLD_EMAIL);
+
+        $token->save(false);
+
+        return $token;
+    }
+
     /**
      * @param $userId
      *