Datepicker Tests: ensure Focus tests work all the way back to jQuery 1.6 in all browsers without having to rely on timeouts.(cherry picked from commit 530d1b7c8c86fbe328c6df439ad9afef779fa435)
Autocomplete demo: Use custom namespace for combobox.
(cherry picked from commit 445ffd0acc95e8c4adb4d63b12815e9bcac1c198)