NEW YORK The Star-Ledger of Newark, N.J., has lost at least $11.5 million in advertising in the past year, according to a letter to staffers from Publisher George Arwady, which predicts the paper will have to undergo serious cutbacks and plans to ask its four unions for work-rule changes in their current contracts. "As a result of several years of such trends, your newspaper is losing money -- a lot of money. If you’ve attended any of my employee meetings, you've been hearing about this situation in detail for some time," Arwady wrote in the letter to numerous employees before...