Niners get six draft picks under contract

And then there was one. The San Francisco 49ers announced Thursday evening that they have signed six members of their seven-man draft pick class to four-year contracts. The only rookie pick left standing is first-rounder A.J. Jenkins. Signed were second-round running back LaMichael James, fourth-round guard Joe Looney, fifth-round linebacker Darius Fleming, sixth-round picks Trent…