Revision history for Perl extension Set::Infinite.

0.23
	changed localtime to gmtime everywhere
	new object type: ICal. Requires Date::ICal; marked as experimental
		This module will not be tested if it can't find Date::ICal
	new date method: epoch

0.22.05
	doesn't need HTTP::Date
	offset supports hours, in 'Date' type

	put "eg/recurring.pl" in distribution. (should be there since 0.21)
	new "Function.pm" base class for functions.
	Used Funtion.pm for "Select.pm" and "Offset.pm" 
	Much better algorithm for "Select.pm"
 	stricter language for "quantize" - only hash allowed.
	reduced "Simple.pm" - may be deprecated someday

	Faster cleanup, max, min
	Cleaner (faster?) union

0.21
	new methods: "select" and "offset".
	syntax changed: "quantize":
		quantize( 1 );   # old syntax, still works
		quantize( quant => 1 );
		quantize( 'months', 1 );   # old syntax for quantize_date, still works
		quantize( unit => 'seconds', quant => 1 ); # quantize_date
	internal: quantize parameter order is different.
	fixed: Quantize_Date returned Set::Infinite instead of Set::Infinite::Simple
	fixed: Date::Add lost format
	new: Set::Infinite::Date::day_size()
	added: recursive test for quantize
	changed: empty return value for quantize is "null" instead of ""; then
		changed "null" name to "" :)

0.20
	local "type"

0.18, 0.19
	Set::Infinite::Element not used anymore.
	2.3x speed improvement in tests over version 0.14.

0.17
	Correction in Simple.pm line-ending, and TODO filename on Windows
	Element_Inf and Date.pm test for undefined parameters on OpenBSD

0.16
	40% speed improvement in tests over version 0.14.

0.15
	20% speed improvement in tests over version 0.14.
	bigint.t fails; moved to 'todo' directory.
	`Date' fails in OpenBSD. Doesn't fail in linux or Windows.

0.14
	Problems with Bigfloat tests - can't fix them. Moved to `todo' directory.
	Fixed Bigint tests and warnings in other tests.

0.13
	Simple.pm and Element.pm:
	Corrected many warnings related to testing undef values on hash

	Quantize.pm and Quantize_Date.pm
	work on real sized chunks too - don't use `%' integer module operation.

	Infinite.pm 
	quantize returns tied array. It can be used directly with `foreach'.
	Pod and tests corrected.

	Infinite.pm
	Accepts slices as input. There are syntax problems - see "CAVEATS" in pod.
	tests added.

	Simple.pm
	Will not cleanup if acessed as tied array, until both a and b are defined or a method is called,
	so that we can set a, then b.

0.12
	Correction in Set::Infinite::Simple::intersection
	[5..5) is null

	New function: quantize

0.11
	Set::Infinite
	Copyright message

	Set::Infinite Line 8:
	# use AutoLoader qw(AUTOLOAD);

	Deep recursion on subroutine "Set::Infinite::add" at h:/util/Perl/site/lib/Set/Infinite.pm line 318.
	Deep recursion on subroutine "Set::Infinite::Simple::new" at h:/util/Perl/site/lib/Set/Infinite.pm line 184.
	solution: 
	Set::Infinite::Element->type and
	Set::Infinite::Date->date_format
	use `pop' instead of `shift', or read parameters

0.01  Mon May 14 14:43:09 2001
	- made Makefile.PL; v.0.010

