Easy Shell Script Install

[jaruba]

Scenario

There's currently no documented way to install the beamup shell script as a global command.

Proposed Solution

Add a package.json and allow npm i -g of beamup (to also add it as a global command). Alternatively we could propose a one line command to download the shell script and add it as a global command. The reason I prefer the NPM way is because the initial POC proposed a one line command to install beamup, and that failed in my first test because it downloaded an error instead of the script, NPM will handle failures correctly.