Niners got only a 2013 seventh-rounder for Taylor Mays

After sending out an e-mail to all 31 teams offering 2010 second-round pick Taylor Mays, the 49ers finally found a taker in the Bengals.  The compensation was undisclosed when the deal was made.  And so most of us simply forgot about the question of what the Niners got and moved on. Matt Maiocco of CSNBayArea.com…