Updated mediawiki/extensions
Project: mediawiki/extensions/SlimboxThumbs  615e2430022f6618660ac74fadbcb1e24a12432e

Do not show lightboxes for skin images

This fixes duplicate lightboxes for [[File:Image.jpg|thumb]].

Change-Id: Idb7182767efce2ee05a336aef1937c448030755b