DENVER — Gov. Jared Polis signed a bill into law Monday that officially eliminates most restrictions on how many unrelated roommates can live together in Colorado. House Bill 1007 prohibits local governments from enacting occupancy limits, which Polis and other critics of the policy have derided as discriminatory and outdated. Roughly two dozen Colorado cities have such restrictions on the books, though lawmakers said that only a few — including the college town of Fort Collins — actively enforce them. “This issue is both a housing issue and a civil rights issue,” Polis said during a bill-signing ceremony outside the...