Autocomplete highlighting

[dlasky]

• support for highlighting in autocomplete
• lighter support for highlighting in data dropdowns (bound to the scope of DDL now so we dont have to update every single model just to pass highlighting)
• list-item now supports name property by default
• list-item highlight no longer unsafely munges the innerHTML

the mark node is a new HTML5 thing if you are wondering what that is. Also it appears to cleanly ignore pointerEvents so it doesnt mess up any of the close filtering stuff unlike span which did without an added pointer-events:none

@shuwen @anthonykoerber

[shuwen]

lgtm

[anthonykoerber]

👍