add appveyor config

appveyor.yml

@@ -0,0 +1,26 @@
+environment:
+  matrix:
+    - PYTHON: "C:\\Python27"
+    - PYTHON: "C:\\Python33"
+    - PYTHON: "C:\\Python34"
+    - PYTHON: "C:\\Python35"
+    - PYTHON: "C:\\Python27-x64"
+    - PYTHON: "C:\\Python33-x64"
+      DISTUTILS_USE_SDK: "1"
+    - PYTHON: "C:\\Python34-x64"
+      DISTUTILS_USE_SDK: "1"
+    - PYTHON: "C:\\Python35-x64"
+
+install:
+  - "%PYTHON%\\python.exe -m pip install -U pip wheel nose cython"
+
+build: off
+
+test_script:
+  - "build.cmd %PYTHON%\\python.exe setup.py nosetests"
+
+after_test:
+  - "build.cmd %PYTHON%\\python.exe setup.py bdist_wheel"
+
+artifacts:
+  - path: dist\*