Fix talker crash, factoid printing, add TODO item

TODO.md

@@ -21,4 +21,5 @@ This bot was written a long time back in the spare time of a busy person. The co
 * Implement factoid aliasing
 * Implement an object system for the give/take commands
 * Create some kind of web reference page
+* Write godoc for pretty much everything and explain why functions exist
 * Enter all of this into GitHub tickets

plugins/factoid.go

@@ -307,7 +307,6 @@ func (p *FactoidPlugin) findTrigger(fact string) (bool, *factoid) {
 
 	f, err := getSingleFact(p.db, fact)
 	if err != nil {
-		log.Printf("Looking for trigger '%s', got err: %s", fact, err)
 		return false, nil
 	}
 	return true, f

plugins/talker.go

@@ -103,8 +103,11 @@ func (p *TalkerPlugin) Help(channel string, parts []string) {
 
 // Empty event handler because this plugin does not do anything on event recv
 func (p *TalkerPlugin) Event(kind string, message bot.Message) bool {
+	sayings := p.Bot.Config.WelcomeMsgs
+	if len(sayings) == 0 {
+		return false
+	}
 	if kind == "JOIN" && strings.ToLower(message.User.Name) != strings.ToLower(p.Bot.Config.Nick) {
-		sayings := p.Bot.Config.WelcomeMsgs
 		msg := fmt.Sprintf(sayings[rand.Intn(len(sayings))], message.User.Name)
 		p.Bot.SendMessage(message.Channel, msg)
 		return true