message: Add support for new messenger 2.0 profile home_url
diff: @@ -493,6 +493,18 @@ function Facebookbot(configuration) {
  get_domain_whitelist: function(cb) {
  facebook_botkit.api.messenger_profile.getAPI('whitelisted_domains', cb);
  },
  + home_url: function(payload) {
  + var message = {
  + home_url: payload
  + };
  + facebook_botkit.api.messenger_profile.postAPI(message);
  + },
  + delete_home_url: function() {
  + facebook_botkit.api.messenger_profile.deleteAPI('home_url');
  + },
  + get_home_url: function(cb) {
  + facebook_botkit.api.messenger_profile.getAPI('home_url', cb);
  + },
  postAPI: function(message) {
  request.post('https://graph.facebook.com/v2.6/me/messenger_profile?access_token=' + configuration.access_token,
  {form: message},
  