[dev] A few stats patches

Hi! I've had to make some small changes to a few files in order to make things run smoothly in our environment. Take'em if you want'em. :-) * Use Days_in_Month instead of assuming all months have 31 days. I don't know about MySQL/PostgreSQL, but Oracle objects to dates like 2004-11-31: * Typo ("History") * Don't call TicketGet on undef TicketID's: Regards, -- Kristoffer.