Adding a Prefixr command to TextMate 2

I was recently looking into how to add a Prefixr command to TextMate 2. For those of you not familiar, Prefixr is a way (created by Jeffrey Way of NetTuts) to take a new-ish CSS property like box-shadow or transform and add all the vendor-specific prefixes automatically. So: transform: rotate(-7deg); becomes: -webkit-transform: rotate(-7deg); -moz-transform: rotate(-7deg); […]