v1.0.0-beta.9

This release contains a few breaking changes in vertical-collections behavior:

• The vertical-collection component is now tagless by default. This means it can be used directly in your templates just about anywhere, and it won't affect your existing styles at all. If you were previously using tagName to change the element of the collection this will still work and add a tag, but that element will by default become the scroll container for the collection. You must use containerSelector to change it to a different parent if you want to.
• The collection now creates and removes elements from the pool of rendered components dynamically based on actual component size and container size. This means that it will automatically check after each render to see if more components need to be rendered (incremental rerender), and remove components if too many were rendered. Users shouldn't notice a difference in day-to-day usage, but it could affect tests they expected certain items to exist at a given time.

This is expected to be the final beta before we release v1.0.0 🎉