update to docutils-0.12
add sphinx patch for docutils >= 0.9
Install the graphs database in the correct location
Trac #16735: Graph database installs to wrong location

#16541 introduced
{{{
mv src "$SAGE_SHARE"/graphs
}}}
which installs the database in the wrong directory.

URL: http://trac.sagemath.org/16735
Reported by: vbraun
Ticket author(s): Volker Braun
Reviewer(s): François Bissey
Trac #16733: docutils-0.12

Straightforward update to the newest docutils. Requires sphinx patch
that is taken from upstream.

http://boxen.math.washington.edu/home/vbraun/upstream/docutils-0.12.tar.
gz

URL: http://trac.sagemath.org/16733
Reported by: vbraun
Ticket author(s): Volker Braun
Reviewer(s): François Bissey
Updated Sage version to 6.3.beta8