message: fix the numpy version to 1.16.0
diff: @@ -30,7 +30,7 @@ SET PATH=%PATH%;C:\%PYTHON_DIRECTORY%
  %PIP_EXE% install future>=0.17.1 --no-deps
  %PIP_EXE% install --ignore-installed --force-reinstall --upgrade tf-estimator-nightly --no-deps
  %PIP_EXE% install tb-nightly --no-deps
  -%PIP_EXE% install numpy --upgrade --no-deps
  +%PIP_EXE% install numpy==1.16.0 --upgrade --no-deps
  %PIP_EXE% install opt_einsum --upgrade
  %PIP_EXE% install pandas --upgrade --no-deps
  %PIP_EXE% install protobuf --upgrade --no-deps
  