Project:Wiki/Updates/1.30.1

Update checklist:


 * Use wikitest as staging area.
 * Update PHP to latest stable release.
 * Update base to MediaWiki 1.31.1.
 * Update plugins
 * Page forms (formerly Semantic forms)
 * The old  Has default form::form-name  Syntax has been replaced by  . Category:Election, Category:Gentoo Infrastructure Servers, Category:Gentoo Staffing Needs, Category:Gentoo Developers and Category:Gentoo Projects need to be updated by hand.