+ echo -n 'npm: '
+ npm --version \
+ || fatal "No npm. Try: wget -O- https://nodejs.org/dist/v6.11.2/node-v6.11.2-linux-x64.tar.xz | sudo tar -C /usr/local -xJf - && sudo ln -s ../node-v6.11.2-linux-x64/bin/{node,npm} /usr/local/bin/"
+ echo -n 'cadaver: '
+ cadaver --version | grep -w cadaver \
+ || fatal "No cadaver. Try: apt-get install cadaver"