Add refresh to test to prevent it from failing randomly

Author: ruflin

test/lib/Elastica/Test/Transport/HttpTest.php

@@ -216,8 +216,8 @@ public function testPostWith0Body()
         $client = new Client();
 
         $index = $client->getIndex('elastica_0_body');
-        $index->refresh();
         $index->create(array(), true);
+        $index->refresh();
 
         $tokens = $index->analyze('0');