[development doc updates]

[Fred Drake]

The development version of the documentation has been updated:

	http://python.sourceforge.net/devel-docs/


More description and explanation in the unittest documentation; update to
match the final code and decisions from the pyunit-interest mailing list.

Added information on urllib.FancyURLopener's handling of basic 
authentication and how to change the prompting behavior.

Added documentation for the ColorPicker module for the Macintosh.