Updated mediawiki/extensions
Project: mediawiki/extensions/PrefStats  392570efcd6dc280121cb728f55b3ada9c8cb682

Replace usage of SpecialPage::getTitle with getPageTitle

Was deprecated in 1.23, see Icdcf5d5295ef5e7f08b1d403e0c123f78738fd40

Change-Id: I9ba719089f76c0a5d60b646e2eabd7298628924b