[appveyor.yml] Update appveyor yaml file

Change the appveyor yaml spec to address #13. We use the recommendation
from
https://packaging.python.org/guides/supporting-windows-using-appveyor/.

appveyor.yml

@@ -1,49 +1,20 @@
-# Attempts to build ECOS in Python 2.7 and Python 3.3 on both 64- and
-# 32-bit Windows using Python wheels.
-# The script is mostly taken from https://github.com/ogrisel/python-appveyor-demo
+# Attempts to build ECOS in Python 2 and Python 3 on Windows
+#
+# https://packaging.python.org/guides/supporting-windows-using-appveyor/
 environment:
-  global:
-    # SDK v7.0 MSVC Express 2008's SetEnv.cmd script will fail if the
-    # /E:ON and /V:ON options are not enabled in the batch script intepreter
-    # See: http://stackoverflow.com/a/13751649/163740
-    CMD_IN_ENV: "cmd /E:ON /V:ON /C .\\appveyor\\run_with_env.cmd"
-
   matrix:
-    - PYTHON: "C:\\Python27_32"
-      PYTHON_VERSION: "2.7.x"
-      PYTHON_ARCH: "32"
-      CONDA_PY: "27"
-      CONDA_NPY: "19"
-
-    - PYTHON: "C:\\Python27_64"
-      PYTHON_VERSION: "2.7.x"
-      PYTHON_ARCH: "64"
-      CONDA_PY: "27"
-      CONDA_NPY: "19"
-
-    - PYTHON: "C:\\Python34_32"
-      PYTHON_VERSION: "3.4.x"
-      PYTHON_ARCH: "32"
-      CONDA_PY: "34"
-      CONDA_NPY: "19"
-
-    - PYTHON: "C:\\Python34_64"
-      PYTHON_VERSION: "3.4.x"
-      PYTHON_ARCH: "64"
-      CONDA_PY: "34"
-      CONDA_NPY: "19"
-
-    - PYTHON: "C:\\Python36_32"
-      PYTHON_VERSION: "3.6.x"
-      PYTHON_ARCH: "32"
-      CONDA_PY: "36"
-      CONDA_NPY: "19"
-
-    - PYTHON: "C:\\Python36_64"
-      PYTHON_VERSION: "3.6.x"
-      PYTHON_ARCH: "64"
-      CONDA_PY: "36"
-      CONDA_NPY: "19"
+    - PYTHON: "C:\\Python27"
+    - PYTHON: "C:\\Python33"
+    - PYTHON: "C:\\Python34"
+    - PYTHON: "C:\\Python35"
+    - PYTHON: "C:\\Python36"
+    - PYTHON: "C:\\Python27-x64"
+    - PYTHON: "C:\\Python33-x64"
+      DISTUTILS_USE_SDK: "1"
+    - PYTHON: "C:\\Python34-x64"
+      DISTUTILS_USE_SDK: "1"
+    - PYTHON: "C:\\Python35-x64"
+    - PYTHON: "C:\\Python36-x64"
 
 install:
   # initialize the submodule
@@ -55,31 +26,21 @@ install:
   - ECHO "Installed SDKs:"
   - ps: "ls \"C:/Program Files/Microsoft SDKs/Windows\""
 
-  # Install Python (from the official .msi of http://python.org) and pip when
-  # not already installed.
-  - "powershell ./appveyor/install.ps1"
-
-  # 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
-  - ps: "gcm python"
-  - "python --version"
-  - "python -c \"import sys; print(sys.path)\""
-  - "python -c \"import struct; print(struct.calcsize('P') * 8)\""
+  # install needd dependencies
+  - "%PYTHON%\\python.exe -m pip install wheel"
 
 build: false  # Not a C# project, build stuff at the test step instead.
 
 test_script:
   # Build the compiled extension and run the project tests
-  - "%CMD_IN_ENV% conda build .\\appveyor\\conda-recipe --quiet"
-  - python appveyor\move-wheel.py
+  - ".\\appveyor\\build.cmd %PYTHON%\\python.exe setup.py test"
+
+after_test:
+  - ".\\appveyor\\build.cmd %PYTHON%\\python.exe setup.py bdist_wheel"
 
 artifacts:
   # Archive the generated wheel package in the ci.appveyor.com build report.
-  - path: '*.whl'
+  - path: 'dist\*'
 
 #on_success:
 #  - TODO: upload the content of dist/*.whl to a public wheelhouse