Fix path problems when pkg_resources is installed, but not setuptools. (Also, remove some obsolete MD5s.)
Fix path problems when pkg_resources is installed, but not setuptools.
(Also, remove some obsolete MD5s.)

--HG--
branch : setuptools-0.6
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/branches/setuptools-0.6%4088124

pypa/setuptools,pypa/setuptools,pypa/setuptools