setup.py: Change distutils to setuptools

Closes #120

appveyor.yml

@@ -0,0 +1,40 @@
+environment:
+  matrix:
+    - PYTHON: "C:\\Python34"
+      PYTHON_VERSION: "3.4.4"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python34-x64"
+      PYTHON_VERSION: "3.4.4"
+      PYTHON_ARCH: "64"
+
+    - PYTHON: "C:\\Python36"
+      PYTHON_VERSION: "3.6"
+      PYTHON_ARCH: "32"
+
+    - PYTHON: "C:\\Python36-x64"
+      PYTHON_VERSION: "3.6"
+      PYTHON_ARCH: "64"
+
+branches:
+  except:
+    - /^sils\/.*/
+
+install:
+  # Prepend newly installed Python to the PATH of this build (this cannot be
+  # done from inside the powershell script as it would require to restart
+  # the parent CMD process).
+  - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
+
+  # Check that we have the expected version and architecture for Python
+  - "python --version"
+  - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
+  - "%CMD_IN_ENV% python -m pip install --upgrade setuptools==21 pip==9"
+
+build: false  # Not a C# project, build stuff at the test step instead.
+
+test_script:
+  - "%CMD_IN_ENV% python setup.py install"
+
+matrix:
+  fast_finish: true

setup.py

@@ -5,7 +5,7 @@
 from __future__ import absolute_import
 
 import ast
-from distutils import core
+from setuptools import setup
 import os
 
 
@@ -18,7 +18,7 @@ def version(filename):
 
 
 with open('README.rst') as readme:
-    core.setup(
+    setup(
         name='cppclean',
         version=version(os.path.join('cpp', '__init__.py')),
         description='Find problems in C++ source that slow development '