Hit can have version when option version is specified in ElasticQuery.

ResultMapper can now map bulk action responses.
- New result class `ResultBulk`
- `BulkAction` class to contain single bulk action response item

Author: Spamercz

src/Exception/ResponseCouldNotBeMapped.php

@@ -12,7 +12,7 @@ public function __construct(
 		\Throwable $previous = NULL
 	)
 	{
-		parent::__construct(json_encode($message), $code, $previous);
+		parent::__construct((string) \json_encode($message), $code, $previous);
 	}
 
 }

src/Response/ResultMapper.php

@@ -17,7 +17,7 @@ public function map(
 			$result = $this->mapSearchResults($elasticSearchResponse);
 
 		} elseif (isset($elasticSearchResponse['items'])) {
-			$result = $this->mapBulkActions($elasticSearchResponse);
+			$result = $this->mapBulkResult($elasticSearchResponse);
 
 		} else {
 			throw new \Spameri\ElasticQuery\Exception\ResponseCouldNotBeMapped($elasticSearchResponse);