Can not distribute project builds from a same group.

At the moment, if a group build is launched, all project from the group are distributed to the same build agent.
This rule makes the distributed builds process ineffective if we have a few groups containing a lot of project.

Splitting the groups does not make sense because we must not considere some technical limits into a functionnal feature.

We can use a common maven repository that could be configured into a maven profile, and instead of calling "install", we call "deploy" using this profil :
"mvn -P<integration> clean deploy"
Then, all the artifacts from any build agent will be deployed into the same maven repository. So all projects are available for any other and at any time.

The user should be able to build a group AND to choice the distribution mode of the builds.