Implement outgoing webhooks.

utils/config.go

@@ -188,6 +188,7 @@ func getClientProperties(c *model.Config) map[string]string {
 	props["SegmentDeveloperKey"] = c.ServiceSettings.SegmentDeveloperKey
 	props["GoogleDeveloperKey"] = c.ServiceSettings.GoogleDeveloperKey
 	props["EnableIncomingWebhooks"] = strconv.FormatBool(c.ServiceSettings.EnableIncomingWebhooks)
+	props["EnableOutgoingWebhooks"] = strconv.FormatBool(c.ServiceSettings.EnableOutgoingWebhooks)
 	props["EnablePostUsernameOverride"] = strconv.FormatBool(c.ServiceSettings.EnablePostUsernameOverride)
 	props["EnablePostIconOverride"] = strconv.FormatBool(c.ServiceSettings.EnablePostIconOverride)