2003-07-08  Morten Welinder  <terra@gnome.org>

	* src/datetime.c (days_between_basis): Handle new basis
	BASIS_MSRB_30_360_SYM.
	(days_between_BASIS_MSRB_30_360_SYM): New function.
	(days_between_BASIS_MSRB_30_360): Handle end-of-February
	correctly.

2003-07-08  Morten Welinder  <terra@gnome.org>

	* functions.c (gnumeric_days360): Simplify greatly using
	days_between_basis.