Introduced performance improvements (@olivroy, #15, #16, #17).
dt_MM()
, dt_yyy()
and
friends are no longer used, as we use a new internal structure to avoid
duplicate calculationsThe locale’s territory is now better resolved for week in month calculations.
Corrected the formatting of localized GMT formats.
Depend on R >= 3.3 to use strrep()
and
startsWith()