Change elasticsearch bundle dependency to let use bigger than 0.9

Author: Simonas Šerlinskas

composer.json

@@ -12,7 +12,7 @@
     ],
     "require": {
         "symfony/symfony": "~2.6",
-        "ongr/elasticsearch-bundle": "^0.9.2",
+        "ongr/elasticsearch-bundle": "~0.9",
         "ongr/filter-manager-bundle": "~0.4",
         "friendsofsymfony/jsrouting-bundle": "~1.5"
     },