Elizabeth Edwards posts farewell message on Facebook

Friends of Elizabeth Edwards received a message yesterday that many are calling a goodbye. “The days of our lives, for all of us, are numbered,” she said in a message to her Facebook friends . “We know that.” ( PR Daily contributor Claire Celsi received the message and shared it with her Twitter followers.) Edwards has  reportedly stopped cancer treatments after doctors told her they would be “unproductive.” Her family, including estranged husband John Edwards, &#…