any more, btu defs.h does - and not in the very beginning, but a bit
later
2. some unused and uncompileable OS2 thing removed from string.cpp
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@3242 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1. deleting the last page sets selection to -1
2. deleting the selected page unselects it first
3. adding page calls Layout() on it
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2888 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775