Pass rollbar client settings directly to snippet

..instead of a 'whitelist' of just a few, pass any client settings given to the smoke_detector provider config.

- [x] Update README
Warning: Personal Rant

I find alignment to be a waste of time. it doesn't improve the legibility for me, but it does make the code slower to modify. I'd rather spend my time making meaningful changes than adding whitespace to a bunch of unrelated code because I changed a variable name.