Log Message:
Updated time/p5-DateTime to 1.4800

1.48   2018-03-26
- The last release would die if Sub::Util was not available, but this should
  just be an optional requirement. Fixed by Paul Howarth. Fixes GH #77. PR
  #78.

1.47   2018-03-25
- DateTime::Duration->multiply now only allows integer
  multipliers. Implemented by Dan Stewart. PR #73.

- Added is_last_day_of_quarter() and is_last_day_of_year()
  methods. Implemented by Dan Stewart. PR #72.

- When an exception was thrown while adding a duration the object could be
  left in a broken state, with the duration partially applied. Subsequent
  addition or subtraction would produce the wrong results. Reported by Pawel
  Pabian. GH #74.