Merge pull request #11 from poum/master

Fix typos detected during manual review
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.
Extract repeated Makefile

A great deal of duplication is removed.
Remove unused part in build
Fix little title typo