Skip qquicktimeline auto test

On platforms where casting qreal value infinity to int yields a
positive value the test will fail. Test will be skipped on those
platforms.

Change-Id: I9f373a9598ffd72e857c96edce3df216070326c9
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Liang Qi <liang.qi@digia.com>
Remove unneeded ;

Warnings returned by pedantic

Change-Id: Ic2caba475db9064bf302790299d92a217436d0ee
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>