Oh, Jane. What a summer it’s been for your insatiable cottage industry — a cottage about the size of Darcy’s pile at Pemberley, at this point. Here in the 200th birthday year for “Pride and Prejudice,” it seems as if not a week goes by without new grist. Last month the Bank of England announced that it would feature Jane Austen on the £10 note, making Jane the only woman besides the queen and an obscure prison reformer to be honored on British currency; a Twitter war erupted, with the most extreme position taken by someone who tweeted rape and death threats against the woman who’d lobbied the bank to feature a woman.