Add prebuilt binaries and install script

[Rei-x]

I'm using this plugin in my deployment and so far I love this!

The issue I'm having is that building it from source takes about 1 minute, so I created easy install script.

I don't know if you want something like this in your repo, it's just a proposal, I can continue to use my fork for this.

(if you want to merge it, you need to edit repo url)

[Rei-x]

@aaraney, good catch with bash variable expansion, I learned something new today:)