* MatrixContent instead of ListContent
 * matrixbox_label_line for this first line
 * matrixbox_label_column for the first column
(nothing yet for tabs)


git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@19721 20353a03-c40f-0410-a6d1-a30d3c3de9de