message: appveyor: copy the gtest dlls
  Somehow the dlls are not found unless you copy them to the folder where
  you run the exe in.
diff: @@ -65,7 +65,17 @@ test: on
  test_script:
  - cd C:\dronecore
  - if "%configuration%"=="Debug" (
  - build\Debug\unit_tests_runner.exe
  + # We need to manually copy the dlls for now, otherwise they are not found.
  + cp build\libs\gtest\googlemock\gtest\Debug\gtest.dll build\Debug\
  + cp build\libs\gtest\googlemock\gtest\Debug\gtest_main.dll build\Debug\
  + cp build\libs\gtest\googlemock\Debug\gmock.dll build\Debug\
  + cd build\Debug
  + unit_tests_runner.exe
  ) else (
  - build\Release\unit_tests_runner.exe
  + # We need to manually copy the dlls for now, otherwise they are not found.
  + cp build\libs\gtest\googlemock\gtest\Release\gtest.dll build\Release\
  + cp build\libs\gtest\googlemock\gtest\Release\gtest_main.dll build\Release\
  + cp build\libs\gtest\googlemock\Release\gmock.dll build\Release\
  + cd build\Release
  + unit_tests_runner.exe
  )
  