* Update handling credentials routine, replace parsing with Uri object by regexp parsing due to security errors in Windows.
* Add support to aborting download/upload operations for windows platform.
* Add support of progress events for download/upload operations for windows platform.
- progress event object for upload operation is always empty, due to Windows restrictions.
* Fix multiple errors with handling invalid URLs and paths.
* Fix error callbacks in download/upload methods. Now they called with proper Error objects.