fix attribute of code in reST
fix attribute of code in reST

Add an additional level of 'includeAttrib="true"' to rest.xml, which is
needed to percolate the attribute use up through the second level of
IncludeRules for known-language code blocks.

hlamer/kate,sandsmark/kate,sandsmark/kate,hlamer/kate,hlamer/kate,hlamer/kate,DickJ/kate,hlamer/kate,hlamer/kate,cmacq2/kate,jfmcarreira/kate,DickJ/kate,sandsmark/kate,jfmcarreira/kate,jfmcarreira/kate,hlamer/kate,DickJ/kate,hlamer/kate,cmacq2/kate,hlamer/kate,hlamer/kate,cmacq2/kate,DickJ/kate,sandsmark/kate