Initial commit

Don't forget travis/godoc icons!

```
[![Build Status](https://travis-ci.org/lytics/squaredance.svg?branch=master)](https://travis-ci.org/lytics/squaredance) [![GoDoc](https://godoc.org/github.com/lytics/squaredance?status.svg)](https://godoc.org/github.com/lytics/squaredance)
```