add !pm threadify option, fixes #60

bot/command.go

@@ -116,6 +116,15 @@ func (b *Bot) initCommands() commandList {
 			sanitizer:   func(s string) string { return s },
 			allowed:     b.allowOwner,
 		},
+		{
+			key: config.RoomThreadify,
+			description: fmt.Sprintf(
+				"Get or set `%s` of the room (`true` - send incoming email body in thread; `false` - send incoming email body as part of the message)",
+				config.RoomThreadify,
+			),
+			sanitizer: utils.SanitizeBoolString,
+			allowed:   b.allowOwner,
+		},
 		{
 			key: config.RoomNoSend,
 			description: fmt.Sprintf(