Updated mediawiki/extensions
Project: mediawiki/extensions/MobileFrontend  5ddaed6496d21bb8702f9e8ec8f8fba92038a9bf

QA: Properly wait for notifications elements

this was causing bogus failures in Chrome
also update tests for proper language using "should"

Change-Id: I3346ed84da056e15e143249a37a67cffbaca19e3