Add refresh as option

Author: dbengsch

src/kuzzle.js

@@ -1254,14 +1254,18 @@ Kuzzle.prototype.query = function (queryArgs, query, options, cb) {
 
   if (options) {
     if (options.metadata) {
+      if (options.queuable === false && self.state === 'offline') {
+        return self;
+      }
+
+      if (options.refresh) {
+        object.refresh = options.refresh;
+      }
+
       Object.keys(options.metadata).forEach(function (meta) {
         object.metadata[meta] = options.metadata[meta];
       });
     }
-
-    if (options.queuable === false && self.state === 'offline') {
-      return self;
-    }
   }
 
   if (!query || typeof query !== 'object' || Array.isArray(query)) {