change php 7.2 special word Class to BaseClass (#993)

* change php 7.2 special word Class to BaseClass
* add require yii2 ^2.0.13

Author: bscheshirwork

Finder.php

@@ -14,15 +14,15 @@
 use dektrium\user\models\query\AccountQuery;
 use dektrium\user\models\Token;
 use yii\authclient\ClientInterface;
-use yii\base\Object;
+use yii\base\BaseObject;
 use yii\db\ActiveQuery;
 
 /**
  * Finder provides some useful methods for finding active record models.
  *
  * @author Dmitry Erofeev <[email protected]>
  */
-class Finder extends Object
+class Finder extends BaseObject
 {
     /** @var ActiveQuery */
     protected $userQuery;

composer.json

@@ -19,7 +19,7 @@
     "minimum-stability": "dev",
     "require": {
         "php": ">=5.4.0",
-        "yiisoft/yii2": "^2.0.0",
+        "yiisoft/yii2": "^2.0.13",
         "yiisoft/yii2-swiftmailer": "^2.0.0",
         "yiisoft/yii2-authclient": "^2.1.0",
         "yiisoft/yii2-bootstrap": "^2.0.0"