Prettier Standard formatting
This should be merged before #794 so I can rebase that branch with master. Thanks to @MSevey for the idea.
This PR is the simply the result of running prettier-standard 'js/**/*.js' 'plugins/**/*.js'
in the repo.
Standard JS (https://github.com/standard/standard) is a popular style guide. I've used quite a few (Airbnb, Github, Google) and I always find myself coming back to Standard.
Prettier (https://github.com/prettier/prettier) is an auto-formatting tool that keeps code style consistent.