Added docs for wxScrollWinEvent and corrected docs referring
to wxScrollEvent etc.
wxTreeCtrl's and wxListCtrl's ::EditLabel() returns void.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3150 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2. wxNotebook event now derives from it under wxGTK too - fixing the
PAGE_CHANGING event handling bug
3. the controls sample demonstrates PAGE_CHANGING in action
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2562 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775