Merge pull request #23 from sletta/packaging

Packaging
Add a function dumping out a GBMI stack trace of the V4 engine.

Add an exported C-function dumping the JS stack trace which can be
invoked by a debugger with the address of an execution context
it finds in a complete stack trace.

Task-number: QTCREATORBUG-11144
Change-Id: I5314f6b24868f12d4f9dedd1c261658957e581ba
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Merge pull request #24 from xhaakon/mer-stable

Add a function dumping out a GBMI stack trace of the V4 engine.
Warn at runtime about badly threaded calls to QQuickItem::update()

Change-Id: Ia3fc01f11ff28441d4ef095b520297a73e3399d6
Reviewed-by: Laszlo Agocs <laszlo.agocs@digia.com>

Conflicts:
	src/quick/scenegraph/qsgthreadedrenderloop.cpp
Merge pull request #25 from sletta/warn-on-bad-update

[qtdeclarative] Warn at runtime about badly threaded calls to QQuickItem::update()
[qtdeclarative] Packaging: exclude widgets properly

Change-Id: Ifabe23067f0bb731feebc929e70fc111d092a71e