Take Control (7.x-2.3) - en to cy translation catalogue (4 entries)

en: 1 day | @count days
cy[0]: 1 diwrnod

en: 1 year | @count years
cy[0]: 1 flwyddyn

en: 1 week | @count weeks
cy[0]: 1 wythnos @count wythnos

en: 1 month | @count months
cy[0]: 1 mis
cy[1]: @count mis
