message: Use Boost master on Appveyor
diff: @@ -19,7 +19,7 @@ install:
  - cd ..
  - git clone https://github.com/boostorg/boost.git boost
  - cd boost
  - - git checkout boost-1.64.0
  +# - git checkout boost-1.64.0
  - xcopy /s /e /q %APPVEYOR_BUILD_FOLDER% libs\beast\
  - git submodule update --init tools/build
  - git submodule update --init libs/config
  