
What needs to be done:
	* more extensive testing. (Does anybody have some chronological
	  tables ?)
	* adding new calendars:
		Mayan - could be quite easy.
		Egyptian, Coptic, Armenian - very nice calendars; have
		  12 months - each 30 days + 5 days extra at the end/
		  beginning of the year.
		Roman - the same as the julianic, but 754 years 'older'.
		The Calendar of the french revolution - seems to be not
		  soo much easy.
		Indian, Japanese, Chinese... - I have no idea :-(
	* debugging the turkish calendar.
	* some implementation for feasts. (but this is VERY complicated
	  if we want to be as much general as possible).

	* rewriting of kal_getdate() so that it doesn't need to exec the
	  "date" command.
	* adding 'kal_xxx_year_info', that would compute the characteristic
	  for given year (such as 'the golden number', 'epact', number of
	  days in the year etc.)

	* making it into a shared library.

