I've uploaded an apache-manifoldcf-0.4-incubating package which you can download from http://people.apache.org/~kwright. If you agree this should be released please vote +1.
[Note that the release of this artifact is dependent on the release of the three plugin packages upon which it depends. If we need to change those packages we'll need to spin a new RC of this one. Also please note that I've include SHA1 signatures for the first time, as per Jukka's suggestion.] Thanks! Karl