Changed document date field and roman.py notes
https://fossies.org/diffs/docutils/0.12_vs_0.13.1/COPYING.txt-diff.html
(From OE-Core rev: 2429aec52ab04e866e3d9af5a5c7682aa8878467)
Signed-off-by: Edwin Plauchu <edwin.plauchu.camacho@linux.intel.com>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
