remove jsonpCallback from queryOptions

"It is preferable to let jQuery generate a unique name as it'll make it easier to manage the requests and provide callbacks and error handling." - http://api.jquery.com/jQuery.ajax/

lib/backbone.paginator.js

@@ -100,7 +100,6 @@ Backbone.Paginator = (function ( Backbone, _, $ ) {
 			});
 
 			queryOptions = _.extend(queryOptions, {
-				jsonpCallback: 'callback',
 				data: decodeURIComponent($.param(queryAttributes)),
 				processData: false,
 				url: _.result(queryOptions, 'url')
@@ -753,7 +752,6 @@ Backbone.Paginator = (function ( Backbone, _, $ ) {
 			}
 
 			queryOptions = _.extend(queryOptions, {
-				jsonpCallback: 'callback',
 				processData: false,
 				url: _.result(queryOptions, 'url')
 			}, options);