Update plugins.qmltypes for QtQuick.Controls

Change-Id: I393b926f80e96296df03898fa49fd83140d36460
Reviewed-by: Fawzi Mohamed <fawzi.mohamed@digia.com>
Fix missing tabs in touch example

The only reason that the we calculated the tab count
explicitly before was that we were using an array.
Now that we are using a model there is no longer any
need to keep track of the count independently of the model.

This fix prevents the count from originally showing as 0 and
prevents an extra value change. In addition the count
is now correctly marked as readonly.

Task-number: QTBUG-38421
Change-Id: I53a5d0df3367c850a7c6846729660dd0f63238d5
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Jonathan Liu <net147@gmail.com>
Correct positioning for popups in QQuickWidget

Handle the case where the QQuickWindow is hidden and the content
is rendered somewhere else using QQuickRenderControl.

Task-number: QTBUG-38116
Change-Id: I51fb9001c307f53bf7d724860b2a66287982724e
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Add changelog for 5.3.0

Change-Id: I99fadbd5dff0a4ec5e6abd5b8a6b5b19cbfcace7
Reviewed-by: Jan Arve Sæther <jan-arve.saether@digia.com>
Reviewed-by: J-P Nurmi <jpnurmi@digia.com>
Reviewed-by: Gabriel de Dietrich <gabriel.dedietrich@digia.com>