CAS: can copy multiple rows to LaTeX

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32972 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e
rename RowHeaderPopupMenu -> RowHeaderPopupMenuD

git-svn-id: http://dev.geogebra.org/svn/trunk/geogebra@32973 23ce0884-8a58-47d3-bc5c-ddf1cd5b9f9e