Add Windows support to Travis

.travis.yml

@@ -1,26 +1,40 @@
-language: python
-python:
-  - "3.5"
-env:
-  - TOX_ENV=docs
-  - TOX_ENV=flake8
-  - TOX_ENV=py27
-  - TOX_ENV=py34
-  - TOX_ENV=py35
 matrix:
-  include:
-    - python: 3.6
+  - os: linux
+      language: python
+      python:
+        - 3.5
+          env:
+            - TOX_ENV=docs
+            - TOX_ENV=flake8
+            - TOX_ENV=py27
+            - TOX_ENV=py34
+            - TOX_ENV=py35
+        - 3.6
+          env:
+            - TOX_ENV=py36
+      addons:
+        apt_packages:
+          - pandoc
+      before_install:
+        - sudo apt-get update -qq
+        - sudo locale-gen fr_FR.UTF-8 tr_TR.UTF-8
+      install:
+        - pip install tox==2.5.0
+
+  - os: windows
+      langauge: sh  # python isn't yet "officially" supported on Windows
       env:
-      - TOX_ENV=py36
-addons:
-  apt_packages:
-    - pandoc
-before_install:
-  - sudo apt-get update -qq
-  - sudo locale-gen fr_FR.UTF-8 tr_TR.UTF-8
-install:
-  - pip install tox==2.5.0
+        - TOX_ENV=py27
+        - TOX_ENV=py37
+      before_install:
+        - choco install pandoc
+        - pip install tox==2.5.0
+
+  - allow_failures:
+    - os: windows
+
 script: tox -e $TOX_ENV
+
 notifications:
   irc:
     channels: