Define wxUSE_NEW_GRID as 1 in setup.h to compile the new wxGrid
otherwise the old wxGrid class will be compiled.
Treat with caution and expect bugs and missing bits at this stage.
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3841 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775