Rework in to a module that can be imported to other projects

[stefanhayden]

hey. this is a great repo. I refactored it to be able to be pulled in to other projects as an npm package and wanted to share those changes back if you were interested!

[daveschumaker]

Awesome! I've been traveling the past few days. Let me take a look at this PR later this week and I'll merge things in if it all looks good. Thanks for digging into this.