Address Book example: Fix QTableView column sorting

Rearrange the code so that QTableView::setSortingEnabled() is
called after setting up the sort filter. This ensures that
new entries added to the model always follow the column
header's sort order.

Task-number: QTBUG-39585
Change-Id: Iaec8aa9342981817a019473ba12bad52cdbdfbb8
Reviewed-by: Mitch Curtis <mitch.curtis@digia.com>
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Empty icons and Cocoa menu items.

Clear menu item's image if QImage is empty (isNull).

Task-number: QTBUG-39557
Change-Id: I8145b67342b0361da2bb945070603cc182202b71
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>
WINCE: Fix grabWindow

BitBlt does not support CAPTUREBLT under
Windows Embedded compact. It was before defined to
the value it would have for a desktop Windows,
but as it looks if the bit gets set for Windows
Embedded Compact he does not do the right thing
anymore. So lets define it to 0 so that we dont
do any harm.

Change-Id: I447ebcd90eb9ae7c64f931aa8859b83794f201a0
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Björn Breitmeyer <bjoern.breitmeyer@kdab.com>
Skip unstable autotests in QtBase.

The combination of these unstable tests makes it very
hard to get changes through the CI system due to the
unrelated test failures.

Skip the following test functions:
tst_QIODevice::unget QTBUG-39983 (Mac)
tst_QThreadPool:expiryTimeoutRace QTBUG-3786 (Windows)
tst_QLocalSocket::processConnection QTBUG-39986 (Mac)
tst_QTcpServer::adressReusable QTBUG-39985 (Linux)

Change-Id: I96559bea0d437fd25966b6ccac1ece1490e06241
Reviewed-by: David Faure <david.faure@kdab.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
xcb: make sure to update window title when it is changed

Task-number: QTBUG-33775
Change-Id: Ibe346c4304532d031bfa1c9b4d73cd02d1e5a64f
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>