Merge pull request #80 from imikemiller/v6_support

Elasticsearch V6 SDK support

Author: basemkhirat

composer.json

@@ -39,7 +39,7 @@
     },
     "require": {
         "php": ">=5.6.6",
-        "elasticsearch/elasticsearch": "^5.0",
+        "elasticsearch/elasticsearch": "^5.0|^6.0",
         "illuminate/pagination": "*",
         "illuminate/support": "*",
         "symfony/var-dumper": "*",