This reverts commit 6c61b20a.  As discussed at
<http://lists.freedesktop.org/archives/libreoffice/2013-May/052449.html> "Re:
fdo#46808, Convert awt::UnoControlDialogModel to new style problem" why the odd
change in 2e2a4827 "scripting: get
CreateUnoDialog() work again" appears to fix things again:

  The problem is that the implementation of the css.awt.UnoControlDialogModel
  involves UNO aggregation
  (IMPL_CREATE_INSTANCE_WITH_GEOMETRY(UnoControlDialogModel) in
  toolkit/soruce/helper/registerservices.cxx creating a
  OGeometryControlModel<UnoControlDialogModel> instance that aggregates a
  UnoControlDialogModel instance).  That means that queryInterface can return a
  reference to something that is technically a different object, and that's
  what's happening here, and explains why calling setPropertyValue in two
  different ways on what logically appears to be a single object can end up
  calling two different implementations (of two different physical objects).
  (UNO aggregation is known to be broken and should not be used.  Nevertheless,
  there's still code that does---code that is a horrible mess and hard to clean
  up.)

  That all this worked as intended in the past is just sheer luck, but any
  way of substantially touching it is asking for trouble.  I'm going to
  revert 6c61b20a again.

I wasn't able to revert without also reverting
be50ad28 "fdo#46808, Convert
awt::XUnoControlDialog to new style," as the two were tightly dependant.  Also
reverts all the follow-up fixes cb4b6dde
"-Werror,-Wuninitialized" (sans the const-ness fix in
UpdateHandler::insertControlModel), 697a007c
"Fix exception specifications," 2ce6828b "fix
awt::UnoControlModelDialog crash," and 2e2a4827
"scripting: get CreateUnoDialog() work again."

Conflicts:
	basctl/source/dlged/dlged.cxx
	filter/source/t602/t602filter.cxx
	xmlscript/test/imexp.cxx

Change-Id: I5d133468062f3ca36300db52fbd699be1ac72998