After exploring a world populated by “anthropomorphic rabbits and a pair of gay lovers†for over 30 years, “Simpsons” creator Matt Groening is putting down his pen and ending his highly acclaimed comic strip, “Life in Hell.†The last “Life in Hell,†Groening’s 1,669th strip, was released on Friday, June 15. For the next four weeks, editors will have their choice of strips from Groening’s extensive archive before they close up shop in July on Friday the 13, which seems oddly appropriate.“I’ve had great fun, in a Sisyphean kind of way, but the time has come to let Binky and...