Merge pull request #465 from chinhodado/appveyor

Add appveyor.yml for AppVeyor support

appveyor.yml

@@ -0,0 +1,17 @@
+# it seems that Qt is only installed by default on unstable os at the moment
+os: unstable
+
+# shallow clone
+clone_depth: 1
+
+environment:
+  QTDIR: C:\Qt\5.4\msvc2013_opengl
+
+install:
+  - git submodule update --init --recursive
+
+before_build:
+  - mkdir build
+  - cd build
+  - cmake ..
+  - cd ..