RIO DE JANEIRO, Brazil (Reuters) - Breathtaking views high above Rio de Janeiro's beaches and mountains can be yours for just a few dollars a day -- if you skip pricey hotels and sleep in a slum. Rio's slums, or favelas, are infamous for drug and gang violence. But a new hostel called "The Little Slum Inn" is attracting adventurous tourists, mainly from Germany, France and the United States, who dare to live amid the grit and poverty. "This place isn't for wimps. If you are uptight, you can go stay at the Copacabana Palace," said co-owner and shantytown dweller...