Qt: do not destroy qt widgets imediatelly, use deletelater for all widgets except inside TQtObject.Destroy. issue #26893


git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46623 4005530d-fff6-0310-9dd1-cebe43e6787f
anchordocking: options: indent header options if show header option present

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46624 4005530d-fff6-0310-9dd1-cebe43e6787f
anchordocking: comments

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@46625 4005530d-fff6-0310-9dd1-cebe43e6787f