Initial commit
Refactor bar chart

Structure according to [Towards Reusable
Charts](http://bost.ocks.org/mike/chart/)
Refactor chord diagram

Structure according to [Towards Reusable
Charts](http://bost.ocks.org/mike/chart/)
Name all selections in bar chart

Explicitly assigning these selections to variables gives other
developers a clearer path to modification.
Name all selections in chord diagram

Explicitly assigning these selections to variables gives other
developers a clearer path to modification.
Organize bar chart logic by lifecycle selection

This transformation further increases the readability of the chart and
helps ensure that future modifications maintain a reasonable structure.
Organize chord diagram logic by lifecycle selection

This transformation further increases the readability of the chart and
helps ensure that future modifications maintain a reasonable structure.
Organize chord diagram logic by "layers"

The diagram's ticks, chords, and handles are (mostly) independent
components. This structure communicates that fact.