Add support for strictbounds in place autocomplete #179

https://developers.google.com/places/web-service/autocomplete

strictbounds — Returns only those places that are strictly within the region defined by location and radius. This is a restriction, rather than a bias, meaning that results outside this region will not be returned even if they match the user input.

I'd like to see a pass-through param for this and any other query params that may be added.