ore-list` displays a virtual, 'infinite' list. The template inside the 
`core-list` element represents the dom to create for each list item. The
`data` property specifies an array of list item data. The `height` property
represents the height of a list item.

By default, the list supports selection via tapping. Styling the selection 
should be done via binding. The `selectedProperty` property is set on the 
list view data for each selected item.

`core-list` manages a viewport of data based on the current s