fix #626 test case for: pageReady event not raised

The fix for the issue has already been integrated in 1.4.7 via
e533d6c2b29f6fa3809c5973de3e5473638855a9. This is a missing test case.

Close #643.
fix #644 Incorrect css rule

Updating border and padding rules.
fix #629 hashchange listeners broken after overlay creation

After a DomOverlay is created, the hashchange listener added by aria.utils.HashManager class was not called any longer.