Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  01c547c62f284ef767d6793220e98e582e4b3c36

Story 1462: Move new search overlay to stable

Also, update browser tests with opening and closing the overlay.

Change-Id: I1c657fd46a2b5be4f27aa508a5cc0d946d6b98a8