Richard Dawson, the legendary host of "Family Feud," has died from complications due to esophageal cancer ... this according to his son. Gary Dawson posted a Facebook message early this morning that read: "It is with a very heavy heart that I inform you that my father passed away this evening from complications due to esophageal cancer. He was surrounded by his family. He was an amazing talent, a loving husband, a great dad, and a doting grandfather. He will be missed but always remembered..." Dawson hosted "Feud" from 1976-1985, and then from 1994-1995. He was also famous for being...