Gasoline being given away?  In this age of $4 a gallon gasoline in the U.S., and much higher prices in Europe and elsewhere, would you riot over it?  All right, it wasn’t a riot, but it sure as heck was gridlock.Electronic Arts was trying to promote the Mercenaries 2: World in Flames game.  And the promotion was free gasoline (or petrol, as the BBC prefers).  Publicity they wanted, and publicity they got, but not all positive.Lynne Featherstone, MP for Hornsey and Wood Green, said: “Whilst