missing "fi"/added downloads options for wps tools

missing fi at end of pingen prevented script from running
Much quicker install for NodeJS

Now uses my NodeJS kali installer script. (from gist)
https://gist.githubusercontent.com/binkybear/40bd757e47a1649f6732/raw/8f
e5b74734d424d74a8e94589faff884a8f5ae58/nodejs_kali_install.sh
Merge pull request #1 from offensive-security/master

Pull to sync fork