Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  69e294c528d9ca0474b3a3e537437d71da58876e

Hide NagOverlay after checkboxes are checked

The nag overlay could be seen in the background of the image description
textarea when the textarea was focused (tested on Andrid Browser 4.2 and
Chrome for Android). This fixes it.

Change-Id: I9a95104ad0f7fce58b4290b01e0d3e8c1870612f