Issue #2321621 by swentel: Fixed Use signatures checkbox on User config page doesn't appear.
Issue #2323721 by dawehner, chx: Fixed [sechole] Link field item and menu link information leakage.
Issue #1974048 by Gábor Hojtsy, vijaycs85, er.pushpinderrana, Sutharsan, penyaskito, bserem: Fixed Limited display of languages when going back in installer is confusing.