[issue4680] Queue class should include high-water mark

[Martin v. Löwis]

Changes by Martin v. Löwis <martin at v.loewis.de>:


----------
versions: +Python 2.7 -Python 2.5.3

_______________________________________
Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue4680>
_______________________________________