Added wxTreeCtrl::GetItemParent to deprecate GetParent.

Moved GetParent into WX_COMPAT_2_2 and exposed base GetParent in
that case too.

Replaced all lib/sample uses of wxTC::GetParent with GetItemParent.

Updated docs to suit.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@18448 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

samples/treectrl/treetest.cpp

@@ -1016,7 +1016,7 @@ void MyTreeCtrl::OnEndDrag(wxTreeEvent& event)
     if ( itemDst.IsOk() && !ItemHasChildren(itemDst) )
     {
         // copy to the parent then
-        itemDst = GetParent(itemDst);
+        itemDst = GetItemParent(itemDst);
     }
 
     if ( !itemDst.IsOk() )