Keep the dockwidget with the mouse when moving to another screen

When you move a dockwidget from one screen to another then it needs to
be kept at the same position on the new screen, i.e. with the mouse
pointer. This fix ensures that this is happening including when the
screens may not 100% align up with each other.

Task-number: QTBUG-33369

Change-Id: If414effdd0e0415629ca31a86f8bbe382dd29f80
Reviewed-by: Richard Moe Gustavsen <richard.gustavsen@digia.com>
Add QQnxNativeInterface::nativeResourceForContext

This mechanism is used by QtWebEngine to extract the platform GL
context. In the QNX case, the platform context is an EGL context, so
the resource you need to ask for is the "eglcontext". Compare to the
xcb native interface which has a similar implementation already.

Change-Id: I873eaadf96898abb24de347ac624c88cd54254cb
Reviewed-by: Jocelyn Turcotte <jocelyn.turcotte@digia.com>
Reviewed-by: Kevin Krammer <kevin.krammer@kdab.com>
Reviewed-by: Fabian Bumberger <fbumberger@rim.com>
QLocale: Avoid a deadlock in error case

QBBSystemLocaleData emits qwarnings when it fails to open or read a pps object.
If the user code installs a message handler that will invoke QLocale API again
(i.e QDate, QDateTime, ...) which leads to a deadlock situation, since
the QBBSystemLocaleData global static object's ctor() is not yet done.

This patch logs the QBBSystemLocale's warnings to stderr and
skips the Qt message handler.

Change-Id: I3d51f85761253e09b14a44179dd14a887733b392
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>