Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  05c58ba0b9f6bcb0dbfa1f55412b6ce981a07b8e

Use original URL when setting download for original

Messed with the download tests a bit too.

Change-Id: I6b7f6b5eb8642db1a81aff05663636813a21fe06
Mingle: https://wikimedia.mingle.thoughtworks.com/projects/multimedia/cards/470