Move all doc examples out of the akka-package to avoid use of private APIs. See #2092

akka-docs/general/code/docs/config/ConfigDocSpec.scala

@@ -0,0 +1,33 @@
+/**
+ * Copyright (C) 2009-2012 Typesafe Inc. <http://www.typesafe.com>
+ */
+package docs.config
+
+import org.scalatest.WordSpec
+import org.scalatest.matchers.MustMatchers
+
+//#imports
+import akka.actor.ActorSystem
+import com.typesafe.config.ConfigFactory
+//#imports
+
+class ConfigDocSpec extends WordSpec with MustMatchers {
+
+  "programmatically configure ActorSystem" in {
+    //#custom-config
+    val customConf = ConfigFactory.parseString("""
+      akka.actor.deployment {
+        /my-service {
+          router = round-robin
+          nr-of-instances = 3
+        }
+      }
+      """)
+    // ConfigFactory.load sandwiches customConfig between default reference
+    // config and default overrides, and then resolves it.
+    val system = ActorSystem("MySystem", ConfigFactory.load(customConf))
+    //#custom-config
+
+    system.shutdown()
+  }
+}