Packs ECMAScript/CommonJs/AMD modules for the browser. Allows you to split your codebase into multiple bundles, which can be loaded on demand. Supports loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.
Highcharts plugin to adjust the height according to the legend height. This avoids situations where too many legend items would introduce navigation handles or take over too much space from the chart.