updated setup.py to work without setuptools (list_packages wasn't present).
updated setup.py to work without setuptools (list_packages wasn't present).

corymintz/mtools,devkev/mtools,gormanb/mtools,aerrami/mtools,corymintz/mtools,rueckstiess/mtools,rueckstiess/mtools,ces0712/mtools,tomzhang/mtools,yaowenqiang/mtools,parkhyeonghwa/mtools,yaowenqiang/mtools,tomzhang/mtools,corymintz/mtools,yaowenqiang/mtools,gormanb/mtools,devkev/mtools,ces0712/mtools,tomzhang/mtools,parkhyeonghwa/mtools,ces0712/mtools,aerrami/mtools,aerrami/mtools,parkhyeonghwa/mtools,devkev/mtools,gormanb/mtools