Updated mediawiki/extensions
Project: mediawiki/extensions/MultimediaViewer  bd0ae60a688d7f02b7423b508c5f982d7a2511af

Icon changes

Removed unused circle.svg, added use.svg for "use this file", added
new SVG versions for most icons from Vibha.

Change-Id: Ice2db8fdaf785dae9d3018f78db35c6cbd15f774