[tx-robot] updated from transifex

apps/files/l10n/nl.php

apps/files/l10n/si_LK.php

apps/files/l10n/zh_CN.GB2312.php

core/l10n/ca.php

core/l10n/cs_CZ.php

core/l10n/da.php

core/l10n/de.php

core/l10n/de_DE.php

core/l10n/el.php

core/l10n/eo.php

core/l10n/es.php

core/l10n/es_AR.php

core/l10n/et_EE.php

core/l10n/eu.php

core/l10n/fa.php

core/l10n/fi_FI.php

core/l10n/fr.php

core/l10n/gl.php

core/l10n/he.php

core/l10n/hr.php