Merge branch 'patch-misc' into 'stable-3.1'

interface/lib/classes/quota_lib.inc.php

interface/lib/classes/remote.d/sites.inc.php

interface/lib/lang/ar.lng

interface/lib/lang/bg.lng

interface/lib/lang/br.lng

interface/lib/lang/ca.lng

interface/lib/lang/cz.lng

interface/lib/lang/de.lng

interface/lib/lang/dk.lng

interface/lib/lang/el.lng

interface/lib/lang/en.lng

interface/lib/lang/es.lng

interface/lib/lang/fi.lng

interface/lib/lang/fr.lng

interface/lib/lang/hr.lng

interface/lib/lang/hu.lng

interface/lib/lang/id.lng

interface/lib/lang/it.lng

interface/lib/lang/ja.lng

interface/lib/lang/nl.lng