Minor refactoring: remove init() in some objects
Merge branch 'cowboy129-master'

Conflicts:
	src/main/scala/spray/contrib/socketio/Namespace.scala
	src/main/scala/spray/contrib/socketio/examples/SimpleClusterServer.scala
	src/main/scala/spray/contrib/socketio/examples/SimpleServer.scala
	src/main/scala/spray/contrib/socketio/examples/benchmark/SocketIOClusterTestServer.scala
	src/multi-jvm/scala/spray/contrib/socketio/SocketIOClusterSpec.scala