Add Appveyor config

Author: Jim Porter

README.md

@@ -1,6 +1,8 @@
 # bencode.hpp
 
 [![Travis build status][travis-image]][travis-link]
+[![Appveyor uild status][appveyor-image]][appveyor-link]
+
 
 **bencode.hpp** is a small, header-only C++ library for parsing and generating
 [bencoded](https://en.wikipedia.org/wiki/Bencode) data.
@@ -105,7 +107,9 @@ memory will live until the encoding function returns.
 
 ## License
 
-This library is licensed under the BSD 3-Clause license.
+This library is licensed under the BSD 3-Clause [license](LICENSE).
 
 [travis-image]: https://travis-ci.org/jimporter/bencode.hpp.svg?branch=master
 [travis-link]: https://travis-ci.org/jimporter/bencode.hpp
+[appveyor-image]: https://ci.appveyor.com/api/projects/status/sycb8ugc3vo3g1g9?svg=true
+[appveyor-link]: https://ci.appveyor.com/project/jimporter/bencode-hpp

appveyor.yml

@@ -0,0 +1,32 @@
+build: false
+version: "{branch}-{build}"
+
+environment:
+  BOOST_INCLUDEDIR: C:\Libraries\boost_1_59_0
+  BOOST_LIBRARYDIR: C:\Libraries\boost_1_59_0\lib32-msvc-14.0
+  PYTHON: C:\Python27
+
+  matrix:
+    - VS: C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat
+      BOOST_INCLUDEDIR: C:\Libraries\boost_1_59_0
+      BOOST_LIBRARYDIR: C:\Libraries\boost_1_59_0\lib32-msvc-14.0
+
+install:
+  - call "%VS%" x86
+  - set PATH=%PYTHON%;%PYTHON%\Scripts;%PATH%
+  - pip install bfg9000
+  - cinst ninja
+  - git clone https://github.com/jimporter/mettle.git
+  - cd mettle
+  - copy ..\include\bencode.hpp include\bencode.hpp
+  - 9k build --backend=ninja --prefix=C:\mettle
+  - cd build
+  - ninja install
+  - cd ..\..
+test_script:
+  - set PATH=C:\mettle;%PATH%
+  - set LIBRARY_PATH=C:\mettle
+  - set CPPFLAGS=/WX /IC:\mettle
+  - 9k build --backend=ninja
+  - cd build
+  - ninja test