* This can't go into 2.2.x since ScalaTest 1.9.2-SNAP2 has source incompatible changes and the dependecy in akka-multi-node-node-testkit would force people to upgrade.
- add more cross references to ActorDSL docs
- improve SBT command line for running the multi-node test
- correct small error in Restart Hooks section of actors.rst