Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  4af7004e16b1cbb970c175da23611432a9c3d5a4

Maintenance for Chrome race condition. See Bug 61504 for description

The root issue is that the back button is available before the notifications
page manifests and the test clicks it, so that while Chrome displays the
notification page, the URL Chrome shows is actually already back on Watchlist.
This seems unlikely to affect a user.

Change-Id: I27859d4ab1850f8b4ebc0d4c10f1e54180f33cd3