Updated mediawiki/extensions
Project: mediawiki/extensions/BlueSpiceExtensions  ccd1546538ec88e183684a957764c061defb3e01

UniversalExport: Fixed permission error for special pages

* Used isAllowed instead of userCan if requested title is a special page
* Added descriptiom

Change-Id: I0723f3ecc94dafd8a31afbb5d5d73efb892edb75