v0.16.1

This release is focused on performance improvements. As such, there were api changes, some breaking.

One of the main changes was removing the import of Timeline.css in the component and putting the onus on the user to manage the inclusion of Timeline.css. See the README for information on how to do this.

Added

• added stickyHeader to disable/enable timeline header sticking on scroll.
• removed fullUpdate prop and functionality. Labels rely on position: sticky to show for items that start before visibleTimeStart. This should greatly improve scroll performance.
• removed extraneous css such as text-align: center on .rct-item, .rct-item-overflow to simplify the dom structure of Item.js
• added headerRef callback to receive a reference to the header element. Due to the change in how the header positioning is implemented (i.e. using position: sticky), there is a need to use a polyfill in certain browsers that don't support position: sticky. With a reference to the header dom element, you can use a polyfill to apply sticky behavior.
• minimumWidthForItemContentVisibility prop to control at what width inner item content is rendered.

Breaking

• removed fixedHeader prop in favor of using position: sticky by default
• removed import of stylesheets in library code, put onus on user to handle this stylesheet