One day the doctors told Joe Martin how long he had to live. Joe told himself: Just live.So he has, beyond anyone's expectations but his own. And in living his life, Joe Martin has changed countless other lives.This is the story of a man who was successful by every measure -- a pillar of his church and community, a top executive of his company, the father of three children. In 1994, Joe was diagnosed with amyotrophic lateral sclerosis, Lou Gehrig's...