Miso (JavaScript)
From Wiki @ Karl Jones dot com
Miso is an open source toolkit designed to expedite the creation of high-quality interactive storytelling and data visualisation content.
Description
Miso consists of Dataset, a JavaScript client-side data management and transformation library, Storyboard, a state and flow-control management library & d3.chart, a framework for creating reusable charts with d3.js.
Miso is in active development (November 2016), and will have components released as they are completed.