More inclusive language

[kafitzgerald]

We could do better with respect to our use of more inclusive language.

One particular item that comes to mind is our use of "dummy" data. We're generally using this to mean placeholder data or example data and could easily use those terms instead.

I imagine there might be some other places we could improve upon this.

A link to some discussion over on pandas with a number of relevant resources and recommendations: pandas-dev/pandas#35724 (comment)