Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  0fa8f80942a96aa7487e157c60c551d3aa705c61

Get rid of global viewer instance

- split event handler setup out of bootstrap and viewer creation
- simplify the tests setup/teardown

Change-Id: Icde1db81efd6191207ba35757192c800ea2d2e91
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/278