Fix bug #1635
Fix bug #1635

With docutils version 0.10 and a lesser version than Python 3 this bug happens:

http://sourceforge.net/p/docutils/bugs/215/

A workaround is done.

PaulLuchyn/libreplan,poum/libreplan,LibrePlan/libreplan,dgray16/libreplan,LibrePlan/libreplan,skylow95/libreplan,skylow95/libreplan,Marine-22/libre,Marine-22/libre,dgray16/libreplan,poum/libreplan,PaulLuchyn/libreplan,LibrePlan/libreplan,PaulLuchyn/libreplan,poum/libreplan,skylow95/libreplan,skylow95/libreplan,poum/libreplan,Marine-22/libre,poum/libreplan,dgray16/libreplan,dgray16/libreplan,dgray16/libreplan,PaulLuchyn/libreplan,LibrePlan/libreplan,poum/libreplan,Marine-22/libre,Marine-22/libre,skylow95/libreplan,dgray16/libreplan,LibrePlan/libreplan,PaulLuchyn/libreplan,LibrePlan/libreplan,Marine-22/libre,PaulLuchyn/libreplan,skylow95/libreplan,PaulLuchyn/libreplan,dgray16/libreplan,LibrePlan/libreplan