[test/windmill] Gracefully skip windmill test if windmill can't be imported. If windmill import fails the windmill module is set to None and a dummy CubicWebWindmillUseCase test class is create. This class contains a test that skip itself with a proper warning message.

#! /bin/sh -e
#

if [ "$1" = remove -o "$1" = upgrade ]; then
  if which install-docs >/dev/null 2>&1; then
    install-docs -r cubicweb-doc
  fi
fi

#DEBHELPER#

exit 0