recognize hover bitmaps (patch 1758843)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_8_BRANCH@47768 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

utils/wxrc/wxrc.cpp

@@ -443,6 +443,7 @@ static bool NodeContainsFilename(wxXmlNode *node)
        parent->GetPropVal(_T("class"), _T("")) == _T("wxBitmapButton") &&
        (name == _T("focus") ||
         name == _T("disabled") ||
+        name == _T("hover") ||
         name == _T("selected")))
        return true;