campaign id is now sent as null instead of 'organic' and removed '2-digit country code' placeholder
campaign id is now sent as null instead of 'organic' and removed '2-digit country code' placeholder

mlsnyder/developer-dot,mlsnyder/developer-dot,ted-spence-avalara/developer-dot,bob-erdman/developer-dot,bob-erdman/developer-dot,ted-spence-avalara/developer-dot,bob-erdman/developer-dot,ted-spence-avalara/developer-dot,mlsnyder/developer-dot,mlsnyder/developer-dot,ted-spence-avalara/developer-dot,bob-erdman/developer-dot,mlsnyder/developer-dot,ted-spence-avalara/developer-dot,bob-erdman/developer-dot