make hiddenCursorField configurable with cursorField option and add test

[phated]

ref #52 (comment)

[torgeir]

That's kind of nifty, actually! Update the docs and we'll merge it.

[mikaelbr]

I've updated the docs here: https://omniscientjs.github.io/api/

[mikaelbr]

Neat implementation. I was somewhat unsure if this is an Public API layer we wanted (more defaults to override, the more public API to maintain etc), and it might cause surprises. But in the end, I think it's handy and would ease usage without ES2015 transpiler, and it would probably not be surprising as it's explicitly opt-in.

Thanks again.

[phated]

Thanks! I really like the withDefaults API. It allows you to be prescriptive with the default export but expose the inner workings for people that need it.

[torgeir]

👍