Raiders not giving up on Harbaugh yet

The latest Yogi Berra/Dr. Seuss-style saying from 49ers coach Jim Harbaugh could be something like, “Nothing is done until it’s done.  And nothing is done, so nothing is done.” Jay Glazer of FOX Sports echoes the report from Adam Schefter of ESPN that Harbaugh to Michigan is not a done deal.  Both also report that…