Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  5f7af0cede441db420b87365806364ecfc21d845

Catch exceptions raised by localStorage write operations

Also adds dependency injection to the metadata panel
for cleaner tests.

Change-Id: I3f062ff88c03ad3baca00461bff486a883776eb1
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/530