Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  ad037ab04bc4fa763bca0ea45064a35bf5df2e8a

QA: Begin removing dependency on Barack Obama article

* Wrap argument in quotes as is coding convention
* Use API to ensure articles exist

Change-Id: I86ae7c376b1f2f881289a7fe366f33dbb1659fbb