Upgrade setuptools to 18.6.1
Upgrade setuptools to 18.6.1

pypa/warehouse,alex/warehouse,karan/warehouse,alex/warehouse,dstufft/warehouse,alex/warehouse,ismail-s/warehouse,alex/warehouse,dstufft/warehouse,ismail-s/warehouse,karan/warehouse,karan/warehouse,pypa/warehouse,wlonk/warehouse,karan/warehouse,pypa/warehouse,ismail-s/warehouse,wlonk/warehouse,ismail-s/warehouse,karan/warehouse,ismail-s/warehouse,alex/warehouse,wlonk/warehouse,dstufft/warehouse,pypa/warehouse,dstufft/warehouse