Fix toArray on node 0.10 or earlier

Author: hdgarrood

src/Node/Buffer.js

@@ -86,7 +86,8 @@ exports.writeStringImpl = function (enc) {
 
 exports.toArray = function (buff) {
   return function() {
-    return buff.toJSON().data;
+    var json = buff.toJSON()
+    return json.data || json;
   };
 };