git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2564 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2. wxPoint now has += and -= 3. Validate() takes "wxWindow *" (and not wxWindowBase) again git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2555 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2. new wxCaret class (MSW only so far) git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2547 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775