Fix native compilation on linux/arm with gcc 4.7.2

/disk/qt5-dev/qtdeclarative/src/qml/jsruntime/qv4function.cpp: In instantiation of ‘int QV4::LineNumberMappingHelper<field, SearchType>::lowerBound(int, int, SearchType) [with int field = 0; SearchType = int]’:
/disk/qt5-dev/qtdeclarative/src/qml/jsruntime/qv4function.cpp:142:49:   required from here
/disk/qt5-dev/qtdeclarative/src/qml/jsruntime/qv4function.cpp:106:13: error: comparison between signed and unsigned integer expressions [-Werror=sign-compare]
cc1plus: all warnings being treated as errors

Change-Id: Ic97d6a2a9acd392d565e9c66f30159552473e092
Reviewed-by: Simon Hausmann <simon.hausmann@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>
Make tst_nodes use QSGRenderLoop to behave more like QQuickWindow

Change-Id: I284164a45cabdb9f1fdbc2050db0cb00810ce946
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Doc: Adding FontDialog type to group "dialogs".

-needed for FontDialog to show up in the landing page.

Task-number: QTBUG-33360
Change-Id: Ic3ea5722e963045704e81a673ebd85770c0253a3
Reviewed-by: Matti Paaso <matti.paaso@digia.com>
Reviewed-by: Lars Knoll <lars.knoll@digia.com>