sweave transition page: fixed #152; also fixed #151
sweave transition page: fixed #152; also fixed #151

fboehm/labnotebook,antass/labnotebook3,fboehm/labnotebook,fboehm/labnotebook,fboehm/labnotebook,antass/labnotebook3,fboehm/labnotebook,fboehm/labnotebook,antass/labnotebook3