Updated mediawiki/extensions
Project: mediawiki/extensions/CentralNotice  1938eafaabbb26a1ab06b3470487ad4622f79a86

CN DB global should have been wgCentralDBname

Reedy's patch causes some issues if the global isn't corrently named :)

Change-Id: I9dba4d1fd1c424580bf473c90a9358c707f8191c