Support docutils >= 0.10
Created originally on Bitbucket by Axel Haustant
Was already merged in Bitbucket before import, marked as merged by the import user
Since docutils 0.10, docutils.math
package is now docutils.utils.math
.
I fixed the import according the changelog: http://docutils.sourceforge.net/RELEASE-NOTES.html#release-0-10-2012-12-16