Fix assigning source ID to non-overlap power charts by way of "fill function" to customize how dummy data is populated.
Add sn.datum.availableSources method to query the /range/sources endpoint.
Start work on migrating CM to general node datum API.
Integrate Wh bar chart.
Don't crash if no data available.
Support xAxisTickCallback function for customizing the tick display. Supports showing daily aggregate values, for example.
Display daily Wh aggregate values instead of noon ticks.