Silver Watchers Temper Their ViewsBY FRANCESCA FREEMAN AND RHIANNON HOYLEIs silver's $50 ticket anything more than a pipe dream these days?Last year, silver peaked at $49.83 per troy ounce. Even after dropping back, metals consultancy GFMS, a unit of Thomson Reuters Corp., was forecasting as recently as November that silver would average $45 a troy ounce this year and break through the psychologically important $50 level by the year-end.But front-month silver futures closed Monday in New York at $28.61, 24% down from its 2012 high of $37.49, reached in late February. And GFMS has considerably pared back its expectations: It said in April that it expects silver ...