made generator compile on VC11

git-svn-id: http://svn.code.sf.net/p/pythonqt/code/trunk@246 ea8d5007-eb21-0410-b261-ccb3ea6e24a9
removed event() method from QClipboard and QWebFrame to avoid deriving from these classes, since they have private destructors

git-svn-id: http://svn.code.sf.net/p/pythonqt/code/trunk@247 ea8d5007-eb21-0410-b261-ccb3ea6e24a9
fixed wrong inplace operator function assignment

git-svn-id: http://svn.code.sf.net/p/pythonqt/code/trunk@248 ea8d5007-eb21-0410-b261-ccb3ea6e24a9