Fix uniform property mapping docs in ShaderEffect

QVector4D and QMatrix4x4 are supported too, while QTransform maps to
mat3 instead of mat4.

Change-Id: Ibba7174dc21f475276e2ee8ecb585740d7bdfa4a
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
dialog-private: replace QJSValue with QQmlV4Handle in js functions

Change-Id: I1e16147a1930f717cddd246068c06728e76eddd9
Reviewed-by: Lars Knoll <lars.knoll@digia.com>