[Distutils] change in setuptools 8.0

A bitbucket user informs me angrily that he cannot use the version of reportlab that's latest on pypi because it has a dependency pillow==2.0.0,>=2.4.0 which is now treated as an 'and' condition by setuptools 8.0 so can not be satisfied. In our latest code we have removed the '==2.0.0,', but presumably there's nothing I can do to make the situation less broken for older versions other than remove those from pypi. Unfortunately we had this as part of the install_requires as install_requires=['pillow ==2.0.0, >=2.4.0','pip>=1.4.1', 'setuptools>=2.2'] so it's our fault for being too lax in describing the requirement. Presumably the , in the list was always an 'and' and now the ',' in the elements is also :( -- Robin Becker