Update getAllObjects query to use createdAt for every query

No need to handle skip > 10k separately now.

Author: JeremyPlease

lib/index.js

@@ -71,22 +71,20 @@ function onlyFiles(schemas) {
 
 function getAllObjects(baseQuery)  {
   var allObjects = [];
-  var next = function(startIndex) {
-    if (startIndex > 10000) {
+  var next = function() {
+    if (allObjects.length) {
       baseQuery.greaterThan('createdAt', allObjects[allObjects.length-1].createdAt);
-      startIndex = 0;
     }
-    baseQuery.skip(startIndex);
     return baseQuery.find({useMasterKey: true}).then(function(r){
       allObjects = allObjects.concat(r);
       if (r.length == 0) {
         return Promise.resolve(allObjects);
       } else {
-        return next(startIndex+r.length);
+        return next();
       }
     });
   }
-  return next(0);
+  return next();
 }
 
 function getObjectsWithFilesFromSchema(schema) {