OSX MenuRole detection: remove ampersand before looking for keywords

The chosen shortcut should not affect the menu role.

Task-number: QTBUG-40181
Change-Id: I5a77d0109999b2fb8d40f8c526e0bbcfa31ad5e7
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
Show the correct cursor for QLineEdit's side buttons.

Task-number: QTBUG-40708
Change-Id: I5869f42bab3a27085b5572a4b83b16c39a67f733
Reviewed-by: Marc Mutz <marc.mutz@kdab.com>