Remember Rise Up? No? How soon you forget. That’s the weekly supplement about race relations that ran in newspapers with a combined circ of 4 million -- only to flame out last summer after barely two months of existence. Rise Up was last heard from in August when it suspended publication, claiming it was ramping up for even greater distribution. After that, nothing. Dan Margolies of The Kansas City Star discovers the Los Angeles Newspaper Group, publisher of the Los Angeles Daily News, is suing Rise Up for more than $93,000 for an unspecified breach of contract.