J2 M3 or J2 M4 snapshot with Graffito ?

[Christophe Lombart]

Which jetspeed distribution to use within Graffito ? 

1. The lastest one (M4 snapshot) but it requires to install M4 in a
public maven repo
or 
2. M3 found on the David internet site (http://www.bluesunrise.com/maven)

Christophe