Accessibility Mac: fix role for links

Change-Id: Ied4dd0bf112f36065da4063857898ca4bd0eb77b
Reviewed-by: Morten Johan Sørvig <morten.sorvig@digia.com>
Fix double release in QTimeZone on Mac

availableTimeZoneIds would release the enumerator.
This leads to a double free, so simply don't release the enumerator.

Task-number: QTBUG-37582
Change-Id: I521a9555d32545afd47095235ccee75a4f3e1974
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Do not run tst_qabstractitemview in parallel

This test waits for window activation and gets disturbed by mouse
movements.
The test duration is not long enough to justify the flakyness (around 10
seconds on my laptop).

Change-Id: I985044f954c09442220db3ca318045c04ef6bb77
Reviewed-by: Sergio Ahumada <sahumada@blackberry.com>