fix #948 ScrollableBodyTest

This commit fixes the following test:
test.aria.utils.overlay.loadingIndicator.scrollableBody.ScrollableBodyTest
Revert "fix #926 - blur not triggered in multiselect for IE"

This reverts commit 5fe86383865fc06b39e604a69cfb9ced38a6c9e7.
Revert "fix #917 Remove unnecessary body focus in aria.templates.TemplateCtxt.$focus"

This reverts commit 8fcb1826e247320e3730a19e9736b2ecee12c148.
v1.4.15