Update NARF! (0.0.0-rc1) - en to is translation catalogue (4 entries)

en: 1 hour | @count hours
is[0]: 1 tími
is[1]: @count tímar

en: 1 day | @count days
is[0]: 1 dagur
is[1]: @count dagar

en: 1 year | @count years
is[0]: 1 ár
is[1]: @count ár

en: 1 month | @count months
is[0]: 1 mánaður
is[1]: @count mánaðir
