Comedian Dave Chappelle appears to be making a comeback. The comedian, who has only made a handful of low-profile appearances since leaving The Chappelle Show in 2006, will co-headline Funny or Die’s Oddball Comedy and Curiosity Tour with Flight of the Concords. The show is coming to 13 cities this fall following a kick-off at South by Southwest in August and will feature other acts including John Mulaney, Demetri Martin and Kristen Schaal …