test, add regression case for lilian input from stdin
minor, allow jdn/ldn as format specials for stdin input
minor, convert lilian/julian objects to daisy prior to printing
minor, add durations to lilian/julian objects via daisy adders
test, avoid ambiguity of duration and ldn string in dadd.088
test, add regression cases for ldn reading and printing
minor, print whole-day lilians (date-only) without the day fraction
test, adapt regression tests to reflect new LDN printing behaviour
Merge branch 'feat/lilian-julian-input'

* feat/lilian-julian-input:
  test, adapt regression tests to reflect new LDN printing behaviour
  minor, print whole-day lilians (date-only) without the day fraction
  test, add regression cases for ldn reading and printing
  test, avoid ambiguity of duration and ldn string in dadd.088
  minor, add durations to lilian/julian objects via daisy adders
  minor, convert lilian/julian objects to daisy prior to printing
  minor, allow jdn/ldn as format specials for stdin input
  test, add regression case for lilian input from stdin