Add AppVeyor support #33

appveyor.yml

@@ -0,0 +1,18 @@
+environment:
+  matrix:
+    # http://www.appveyor.com/docs/installed-software#python
+    - 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"
+    - PYTHON: "C:\\Python36-x64"
+install: "%PYTHON%\\python.exe -m pip install -r requirements.txt"
+build: off
+test_script: "invoke tests"
+after_test: "codecov"