From valeriy Onuchin: - do not ungrab keys in destructor. These key grabbings are to be   canceled anyway as soon as the lower level X11/Qt/gdk widget is   destroyed. Thanks to Valeri Fine.
From valeriy Onuchin:
- do not ungrab keys in destructor. These key grabbings are to be
  canceled anyway as soon as the lower level X11/Qt/gdk widget is
  destroyed. Thanks to Valeri Fine.


git-svn-id: ecbadac9c76e8cf640a0bca86f6bd796c98521e3@9662 27541ba8-7e3a-0410-8455-c3a389f83636

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