Open selfserve to all countries.
Just let the user type in their country.
Delete g.countries.
PromotedLinks can be selfposts.
Accept reports on promoted links.
Admin listing for reported promoted links.
Use g.min_promote_bid in spotlight box message.
Only call campaign.void hook when deleting a campaign.

Not necessary to call when only voiding a transaction.
Typo in POST_edit_campaign.
VDate takes a timedelta offset rather than datetime.