=pro,doc Update sbt-multi-jvm plugin to 0.3.8 and add sbt 0.13 docs

akka-docs/rst/dev/multi-jvm-testing.rst

@@ -21,7 +21,7 @@ You can then add multi-JVM testing to ``project/Build.scala`` by including the `
 settings and config. Please note that MultiJvm test sources are located in ``src/multi-jvm/...``,
 and not in ``src/test/...``.
 
-Here is an example Build.scala file that uses the MultiJvm plugin:
+Here is an example Build.scala file for sbt 0.12 that uses the MultiJvm plugin:
 
 .. parsed-literal::
 
@@ -78,6 +78,30 @@ Here is an example Build.scala file that uses the MultiJvm plugin:
      }
    }
 
+If you are using sbt 0.13 the multiJvmSettings in the Build.scala file looks like this instead:
+
+.. parsed-literal::
+
+   lazy val multiJvmSettings = SbtMultiJvm.multiJvmSettings ++ Seq(
+     // make sure that MultiJvm test are compiled by the default test compilation
+     compile in MultiJvm <<= (compile in MultiJvm) triggeredBy (compile in Test),
+     // disable parallel tests
+     parallelExecution in Test := false,
+     // make sure that MultiJvm tests are executed by the default test target
+     executeTests in Test <<=
+       ((executeTests in Test), (executeTests in MultiJvm)) map {
+         case ((testResults), (multiJvmResults)) =>
+           val overall =
+             if (testResults.overall.id < multiJvmResults.overall.id)
+               multiJvmResults.overall
+             else
+               testResults.overall
+           Tests.Output(overall,
+             testResults.events ++ multiJvmResults.events,
+             testResults.summaries ++ multiJvmResults.summaries)
+     }
+   )
+
 You can specify JVM options for the forked JVMs::
 
     jvmOptions in MultiJvm := Seq("-Xmx256M")

project/plugins.sbt

@@ -3,7 +3,7 @@ resolvers += Classpaths.typesafeResolver
 
 // these comment markers are for including code into the docs
 //#sbt-multi-jvm
-addSbtPlugin("com.typesafe.sbt" % "sbt-multi-jvm" % "0.3.6")
+addSbtPlugin("com.typesafe.sbt" % "sbt-multi-jvm" % "0.3.8")
 //#sbt-multi-jvm
 
 addSbtPlugin("com.typesafe.sbt" % "sbt-scalariform" % "1.0.0")