user configuration for OSGi application bundle

Conflicts:

	akka-osgi/src/main/scala/akka/osgi/OsgiActorSystemFactory.scala
Concerning akka in osgi:
ActorRefProvider contains in akka-cluster or akka-remote bundle are not found by the akka-actor bundle, thus exposing those if required
    akka-actor and akka-osgi wrapped into one bundle (akka-osgi) taking care of the ActorSystem creation
    The akka modules reference.conf are copied inside this bundle.
    Every other akka module is imported optionnaly,
      the same for com.google.protobuf (already imported in akka-remote)

Conflicts:

	project/AkkaBuild.scala
user configuration for OSGi application bundle
Logging

Conflicts:

	akka-osgi/src/main/scala/akka/osgi/OsgiActorSystemFactory.scala

Conflicts:

	akka-osgi/src/main/scala/akka/osgi/ActorSystemActivator.scala
fix for bundle