Updated mediawiki/extensions
Project: mediawiki/extensions/DataTransfer  124849d477df8cb254d4b5a0db705480bd86ff33

Add license name for display on "Special:Version"
* license short name according to spdx.org (http://www.mediawiki.org/wiki/Manual:$wgExtensionCredits#Usage)

Change-Id: Ie532a93fe20abdfb0ab97b23ceca563b816e0cd2