Extract author from Le Monde article

Summary:
On Le Monde, author weren't correctly parsed if the name includes an URL.

Fixes T513.

Test Plan:

• Go to http://tools51.nasqueron.org/wikimedia/write/sourcetemplatesgenerator/
• Try http://www.lemonde.fr/pixels/article/2015/07/24/comment-le-deep-learning-revolutionne-l-intelligence-artificielle_4695929_4408996.html

Reviewers: dereckson

Subscribers: ledesillusionniste

Maniphest Tasks: T513

Differential Revision: http://devcentral.nasqueron.org/D29