The Globe and WBZ are reporting that the beloved, beautiful Dunkin' Donuts sign in Brighton is coming down. A Dunkin' Donuts spokesperson said the sign is in bad shape and must go. Change is inevitable and usually a good thing, but the sign is a part of history. And, besides, it just looks nifty. Bostonist put in a call to Dunkin' Donuts and received a statement from Margie Myers, Senior Vice President of Communications:......