Updated mediawiki/extensions
Project: mediawiki/extensions/BetaFeatures  419369d428ad0097e977af644d5a89a5f6a1bbf0

Use Message::text instead of relying on Message::_toString

Previously they were being ->parse()'d, however none of the messages
require parsing so text is fine. Also switched some Html::rawElement's to
Html::element's for extra safety.

Change-Id: I600b16f5c163aa74b5a9feed9948f718d1ce7239