We were incorrectly escaping them. They are supposed to be already
correctly escaped HTML.
Also improve documentation and really allow 'tooltips' to be optional.
Bug: T203325
Change-Id: I1f92479bf1989e1529b18b8b206b61db1257eb87
This is to make sure that the design is similar, but also so
that the widget can be read in JS where needed and that we
can toggle the disabled state on/off through the whole widget,
that is made from a series of checkbox widgets.
Bug: T199946
Change-Id: I9943b0aa1746fdfb60c7d4c88d6d4d7ac0589a2c