message: Move to Visual Studio 2017 image
diff: version: 1.0.{build}
  -image: Visual Studio 2015
  +image: Visual Studio 2017
  configuration:
  - Release
  clone_folder: C:/openchemistry/avogadrolibs
  @@ -8,7 +8,7 @@ init:
  environment:
  PATH: '%PATH%;%QTDIR%\bin'
  matrix:
  - - CMAKE_GENERATOR: '"Visual Studio 14 2015 Win64"'
  + - CMAKE_GENERATOR: '"Visual Studio 15 2017 Win64"'
  QTDIR: C:\Qt\5.6\msvc2015_64
  platform: x64
  build_script:
  