Draggable: allow draggable to defer destroying itself upon DOM removal until after stop is fired. Fixes #6889 - Draggable: Cursor doesn't revert to pre-dragging state after revert action when original element is removed.
Test Suite: Remove Flaky Datepicker test, and correct more old jQuery test cases for old Opera and old Safari.
Datepicker Tests: fix failing oldIE tests by creating new inputs to focus when necessary for focus tests.
Datepicker Tests: Fix hanging IE tests resulting from asynchronous blur