python: replace distutils with setuptools

Signed-off-by: Thorsten Liebig <liebig@imst.de>

.gitignore

@@ -26,6 +26,8 @@ localConfig.cmake
 *.pyc
 *.pyo
 python/**/*.cpp
+python/openEMS.egg-info/*
+python/dist
 !python/doc
 python/doc/_build
 python/doc/Tutorials/__*

python/setup.py

@@ -5,8 +5,8 @@ Created on Sun Dec 13 23:48:22 2015
 @author: thorsten
 """
 
-from distutils.core import setup
-from distutils.extension import Extension
+from setuptools import setup
+from setuptools import Extension
 from Cython.Build import cythonize
 
 import os, sys