The Ann Arbor school district has ended a controversial black-student only program at Dicken Elementary School. “Lunch Bunch is no longer,” district spokeswoman Liz Margolis said in an e-mail to AnnArbor.com. “It will be discussed among staff and some parents and be reworked. It has a valuable goal of assisting children who are not performing well on the MEAP, and this effort will continue.” Dicken Principal Mike Madison drew criticism from parents following his decision last week to take members of the African-American Lunch Bunch on a field trip to hear a black rocket scientist at the University of Michigan...