いつの間にか Publish::Twitter が動かなくなっていたので何だろうと調べてみると 1.05 から apiurl の指定方法が
NOTICE: As of Net::Twitter 1.05 the default URL has changed from http://twitter.com/statuses to http://twitter.com/ to reflect the expansion of the API outside the /statuses area. If your code was written to Net::Twitter 1.04 or earlier, and you set apiurl, including /statuses in the URL, you will have to remove it. the top level "directory" for the API is now added individually in each method.
ってことらしい。そんなわけで Twitter のステータスを Frepa や wassr に同期する YAML の module: Publish::Twitter の apiurl を
apiurl: http://www.frepa.livedoor.com/statuses
から、
apiurl: http://www.frepa.livedoor.com/
と変更して解決。