Change from distutils to setuptools.
simplejson's setup.py is written to import setup, Extension, Command
from setuptools and fallback to distutils if the import fails. Prior to
this change files were being installed to a host polluted path
/usr/lib/python2.7/site-packages/simplejson-3.8.2-py2.7-linux-x86_64.egg
(even on ARM targets). python was unable to import simplejson. Switching
to setuptools corrects the problem.
Signed-off-by: George McCollister <george.mccollister@gmail.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
