Update IAccessible2 to 1.3.0

In addition change to the one in all file instead of individual
interfaces. Future updates only have to copy the new version of
ia2_api_all.idl and run nmake.

Change-Id: Ie7a1e65c8dd0c73809ac97aae2d586f425337f18
Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com>
QMetaType: disallow automatic registration of reference type

The automatic registration code that would be added will break
with a reference type.

QObject's template code calls QMetaTypeId2 on the arguments of the
signal. Including on references.

Reference type cannot be register as metatype. They are not supported
in QVariant, or in QueuedConnection.

Change-Id: I83f2e50f9f886909dc24f3809c990e5763012cc2
Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>