Updated mediawiki/extensions
Project: mediawiki/extensions/TimedMediaHandler  05dc6e14ded67689e5756dcf337907ad663549df

Set X-Content-Duration header on ogg transcodes.

Needed by Firefox. Also wanted by ogv.js. Previously we only
set the header on the source file, not the transcoded files.

This change requires core change Ic053be63b3e

Bug: 62928
Change-Id: I37dc0a6d5d7d0407d883d236e862fd8a33a6d63f