Add QFileDialog::ShowDirsOnly to manual dialog test.

Task-number: QTBUG-35396

Change-Id: I6ccb59d6bd3857aea66911e03200f28d093e57b4
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
SSL: blacklist ANSSI intermediate certificate

... because it was used to operate a man-in-the-middle proxy.

Task-number: QTBUG-35474
Change-Id: Ic7f19708b278b866e4f06533cbd84e0ff43357e9
Reviewed-by: Richard J. Moore <rich@kde.org>
QUdpSocket auto test: disable Socks5 over UDP for new test server

... because they fail on the new test server. This commit can be
reverted once the Socks5 socket engine is fixed.

Task-number: QTBUG-35490
Change-Id: I85635d4b44d26168d40a56b7a121693297564f0f
Reviewed-by: Tony Sarajärvi <tony.sarajarvi@digia.com>
Reviewed-by: Richard J. Moore <rich@kde.org>