* Build groups! Simplify the process of building your deck different ways (e.g. one for color, one for PNP). Can be enabled explicitly or via command line. [See our shiny new docs for how these work](http://squib.readthedocs.org).
* The `csv` method now supports a `data` option to read CSV data directly. When set, it overrides the `file` option.
Chores:
* Switched to `require_relative` internally throughout the codebase to be more pry-friendly (#130)