Fix bug DNN-5813: add callback parameter on sort stop method.
DNN-5807 Fixes to ExtensionPointManager: Independent of HttpContext and thread safe
DNN-5818 fixed IE11 issue with dnn.diagnostic.js
DNN-5652 Scheduler throws "System.InvalidOperationException: Sequence contains no matching element" error
add logging code
DNN-5274 SI: Page titles not changing in localization
Added code to close page localization window after pages are localized to ensure that default locale is not updated when user presses update page