the apparently attempted context renaming cannot work this way - while
the code would see the renamed context, lupdate would be oblivious of
that, and consequently the translations would not fit.

additionally, lupdate won't recognize the TR() alias at all any more.

Change-Id: I47baeb55a85a59b3c261153ed0c1e17726ffd284
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@digia.com>
Reviewed-by: Karsten Heimrich <karsten.heimrich@digia.com>