Add support for whitelisting of zinc options
Review Request #2835 - Created Sept. 16, 2015 and submitted
|benjyw, jsirois, molsen, nhoward_tw, zundel|
This is intended to make it clear that we do not officially support zinc's entire API.
The whitelist as it stands accounts for options used at Foursquare and Twitter, but it can be overridden to silence the warning in a repo that is using an unsupported option.