North Shore Businesses Singing DNC Blues 18 minutes ago WCVB TheBostonChannel.com There have been plenty of complaints from Boston companies about the hassles created by the Democratic National Convention, and the business blues seem to be spreading. NewsCenter 5's Kelley Tuthill reported that North Shore companies anticipating a mini-boom in late July are now looking at a bust. Paul Pasquale's banquet hall may be located in Lawrence, but he said he lost a lucrative conference because of the DNC. "She said they canceled because they didn't want to be in Boston in the month of July," he said. There's no...