CDbConnection::cache() and CActiveRecord::cache() now accepts array typed cache dependency parameter

```php
// before
$models=CActiveRecord::model()
	->cache(3600,new CChainedCacheDependency([
		Post::model()->cacheDependency,
		Comment::model()->cacheDependency,
	]))
	->findAll();

// after, minus 29 characters
$models=CActiveRecord::model()
	->cache(3600,[
		Post::model()->cacheDependency,
		Comment::model()->cacheDependency,
	])
	->findAll();
```