0.5.0

Fixed

• transfer of Epiphany to a Sunday was breaking numbering of weeks
  of the Ordinary Time
• Day.new() (call without any arguments) was crashing
• shebang of calendariumrom
• CLI: calendariumrom query was printing internal representation
  of a Season object instead of human-readable season name
  (spotted and fixed by Simon Szutkowski @simonszu)
• MRI 2.x interpreter warnings

Added

• first Vespers of Sundays and solemnities: optional feature
  of the Calendar (constructor has new keyword argument
  vespers: true to activate it), populates Day#vespers
  with a Celebration if Vespers should be taken from the following
  day
• proper handling of collision between Immaculate heart of Mary
  and another obligatory memorial (CDW Prot. n. 2671/98/L)
• Calendar#[] - alias of Calendar#day, but with additional
  support for a Range of Dates (returns an Array of Dates
  when called this way;
  by Brian Gates @bgates)
• Celebration#change(title: nil, rank: nil, colour: nil, color: nil, symbol: nil) -
  returns a copy of the celebration with values of selected
  properties replaced by those passed as arguments
• Celebration#symbol - machine-readable unique identifier
  of a celebration, for now only for solemnities of the temporale
• CLI: calendariumrom query supports printing a day, month or year
  (by Simon Szutkowski @simonszu)
• CLI: calendariumrom query supports apart of bundled calendars
  also custom ones, specified on the command line
  (by Simon Szutkowski @simonszu)
• CLI: calendariumrom cmp correctly handles celebrations
  present in only one of the compared sources
• data: memorials of saint popes John XXIII and John Paul II added
  to Universal Roman calendar in Latin and to the calendar
  of Czech and Moravian dioceses where they were missing

Changed

• ferials of the final week of Advent have proper titles
• ordinals in French names of Sundays and ferials have proper
  suffixes
• Day.new signature changed from argument Hash
  to Ruby 2 keyword arguments (no change in argument names
  or count, but previously it wouldn't even notice unexpected
  arguments, now it will crash when encountering them)
• SanctoraleLoader raises always InvalidDataError
  (it used to raise RangeError on invalid date and
  RuntimeError on other kinds of invalid data)
• CelebrationFactory creates also temporale solemnities
  (useful mostly in specs)
• CLI: calendariumrom errors fails gracefully, without backtrace