Copy ninja.exe to Python dir so it hopefully appears in path.

.appveyor.yml

@@ -1,16 +1,26 @@
 version: 1.0.{build}
+
 os: Visual Studio 2015
+
 platform:
   - x86
+
 branches:
   only:
     - master
+
 install:
  - ps: (new-object net.webclient).DownloadFile('https://www.python.org/ftp/python/3.4.4/python-3.4.4.msi', 'python-3.4.4.msi')
  - ps: msiexec /i python-3.4.4.msi /quiet /qn /norestart
  - cmd: copy c:\python34\python.exe c:\python34\python3.exe
  - ps: (new-object net.webclient).DownloadFile('https://dl.dropboxusercontent.com/u/37517477/ninja.exe', 'ninja.exe')
+ - cmd: copy ninja.exe c:\python34
+
 build_script:
   - cmd: echo No build step.
+
 test_script:
   - cmd: c:\python34\python3 run_tests.py --backend=ninja
+
+artifacts:
+  - path: meson-test-run.txt