2004-08-01 G. Yoshida
	* Version 0.2.2 release and uploaded.

2004-07-23 G. Yoshida
	* added support for RSK correspondence.

2004-05-20 G. Yoshida
	* Version 0.2.1 released and uploaded.

2004-05-14 G. Yoshida
	* src/test/test_hook.py: initial import.
	* src/hook.py: fix bug of Hook.number method.

2004-05-13 G. Yoshida
	* src/hook.py: added support for hook.
	* src/young.py: added support for jeu de taquin and word.

2004-05-02 G. Yoshida
	* Version 0.2.0 released and uploaded.

2004-04-11 G. Yoshida
	* src/test/test_partition: added test for up/down operations 
	* src/test/test_young: added test for bumping and Skew tableaux.

2004-03-28 G. Yoshida
	* src/compat.py: added itertools.groupby & itertools.tee.
	* src/mathformat.py: added pretty printer for Skew tableaux.
	* src/partition.py: partition now handles up/down operations that young.py
	handled before.
	* src/young.py: added support for bumping.
	added support for Skew tableaux.
	change the algorithm to generate tablueaux.
	up/down operation has moved to partition.py.
	young(2,2,1) is an invalid form. Use young((2,1,1)) instead.

2004-01-07 G. Yoshida
	* src/compat.py: new file for backward compatibility.
	* src/util.py: new file for utility functions.
	* src/young.py: introduce Python 2.4 features: sorted andreversed.
	* src/partition.py: change the algorithm to generate partitions.

2003-11-24 G. Yoshida
	* src/combination.py: fixed bug of _combination_of_sequence.
	changed argument handling of factorial.
	fixed bug of permutation(permutation([]), permutation([1]) returned
			duplicated values.).
	* src/iterator.py: remove iterator.Iterator. added second argument, step,
	to drop().
	use itertools.islice for drop().
	change while-loop to for-loop at take().
	* src/partition.py: added is_integer(n). SeqOfPartition._show_partition
	now uses generator.
	* src/permgroup.py: PermGroup._get_inversion_number now uses generator.


2003-10-25 G. Yoshida
	* Version 0.1.2 released and uploaded.

2003-10-23 G. Yoshida
	* docs/index.html: update docs for young-0.1.2.

2003-10-19 G. Yoshida
	* samples/test_combination.py: added catalan tests.
	* samples/test_iterator.py: don't import young.iterator.
	* samples/test_partition.py: added tests for p(n, k).
	* samples/test_young.py: change to use young.take, young.drop.
	* src/__init__.py: import iterator.py
	* src/combination.py: enhance catalan.
	* src/iterator.py: __all__ now has only 'take' and 'drop'.
	* src/young.py: don't inherit iterator.Iterator.
	* src/partition.py: added support for p(n, k).

2003-10-14 G. Yoshida
	* samples/test_combination.py: added new tests.
	* samples/test_partition.py: added new tests.
	* samples/test_permgroup.py: added new tests.
	* src/combination.py: fixed bug of combination(n,0)(which raised Error)
	* src/iterator.py: added iterator.tail.
	* src/permgroup.py: removed japanese-english translation table.

2003-10-11 G. Yoshida

	* src/combination.py: added support for (wak)k-composition.
	* src/partition.py: added get_num_of_parts, conjugate, dot_notation,
	isdistinct to Partition.
	added distinct and dot_notation to SeqOfPartition.
	* src/permgroup.py: added (weak_)excedance to PermGroup.
	added.

2003-08-11 G. Yoshida

	* src/permgroup.py: added support for permutation group
	* samples/Taquin: added demo script of "jeu de taquin"

2003-07-11 G. Yoshida
	* initial release
