HAVANA (AP) — The Rolling Stones unleashed two hours of shrieking, thundering rock and roll on an ecstatic crowd of hundreds of thousands of Cubans and foreign visitors Friday night, capping one of the most momentous weeks in modern Cuban history with a massive celebration of music that was once forbidden here.The week opened with the arrival of President Barack Obama in Air Force One, accompanied by more than 1,000 employees of a government that waged a cold war against Cuba for more than 50 years.