Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  7876e59ce1ef9659782a9ef00ec0f28994ad5b43

QA: Merge user_login and login pages

They are the same and having two is confusing
Use more established login page

Change-Id: I44f2a6d8eeda4ac922c247ac274e9f19c33dded9