message: Update appveyor.yml
  Update appveyor qt5 version, 5.9.2 was removed.
diff: @@ -9,9 +9,9 @@ environment:
  MSBUILD_FLAGS: /verbosity:minimal /maxcpucount
  matrix:
  - CMAKE_GENERATOR: "Visual Studio 15 2017"
  - QT5: C:\Qt\5.9.2\msvc2015
  + QT5: C:\Qt\5.10.0\msvc2015
  - CMAKE_GENERATOR: "Visual Studio 15 2017 Win64"
  - QT5: C:\Qt\5.9.2\msvc2017_64
  + QT5: C:\Qt\5.10.0\msvc2017_64
  branches:
  only:
  