Changed Yii.php case in some files where it was wrong

apps/bootstrap/www/index.php

@@ -3,7 +3,7 @@
 // comment out the following line to disable debug mode
 defined('YII_DEBUG') or define('YII_DEBUG', true);
 
-require(__DIR__ . '/../vendor/yiisoft/yii2/yii.php');
+require(__DIR__ . '/../vendor/yiisoft/yii2/Yii.php');
 require(__DIR__ . '/../vendor/autoload.php');
 
 $config = require(__DIR__ . '/../config/main.php');

apps/bootstrap/yii

@@ -13,7 +13,7 @@ defined('YII_DEBUG') or define('YII_DEBUG', true);
 // fcgi doesn't have STDIN defined by default
 defined('STDIN') or define('STDIN', fopen('php://stdin', 'r'));
 
-require(__DIR__ . '/vendor/yiisoft/yii2/yii.php');
+require(__DIR__ . '/vendor/yiisoft/yii2/Yii.php');
 require(__DIR__ . '/vendor/autoload.php');
 
 $config = require(__DIR__ . '/config/console.php');