Improvement/render-highlight

[kylelol]

Implemented a way to always have the highlight view always present around a range of text, instead of just having to tap on the text to get it to appear.

[kylelol]

@rnystrom is this good to merge? Just wanted to double check.

[rnystrom]

@kylelol hey sorry I keep forgetting to come back to this. I need to go through this in a little more detail to make sure nothing regresses. Im a little unsure about the new layers and layout calls in the view.

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[kylelol]

@rnystrom Sounds good. I think we can probably do without the reposition call in layoutSubviews and rely the implementer to add that in manually.

The extra layer stuff was just to put the highlight behind the text instead of overtop of it.

[rnystrom]

@kylelol if we can do w/out the layout call, let's roll w/ that. We can add it in if it becomes a burden/issue

[kylelol]

@rnystrom it's removed. 👍