[tx-robot] updated from transifex

apps/calendar/l10n/ca.php

apps/calendar/l10n/it.php

apps/calendar/l10n/zh_CN.GB2312.php

apps/contacts/l10n/ca.php

apps/contacts/l10n/it.php

apps/files/l10n/zh_CN.GB2312.php

apps/media/l10n/zh_CN.GB2312.php

core/l10n/zh_CN.GB2312.php

l10n/af/settings.po

l10n/ar/settings.po

l10n/ar_SA/settings.po

l10n/bg_BG/settings.po

l10n/ca/calendar.po

l10n/ca/contacts.po

l10n/ca/settings.po

l10n/cs_CZ/settings.po

l10n/da/settings.po

l10n/de/settings.po

l10n/el/settings.po

l10n/eo/settings.po