(30 Aug 1997) Russian/Nat A major clean up is underway in Moscow - as it prepares to celebrate its 850th anniversary in grand style. Anticipating that it will be in the international spotlight next weekend - the city is spending more than 40 million dollars on a face lift. Part of the process - clearing the estimated five-thousand homeless people from the Russian capital's streets. At the break of dawn, city workers are busy putting the finishing touches to Moscow's city centre. The whole city