Merge pull request #2604 from mkurz/migrate_play-socket-io

Author: exoego

modules/core/src/main/resources/artifact-migrations.v2.conf

@@ -264,6 +264,11 @@ changes = [
     groupIdAfter = com.typesafe.play
     artifactIdAfter = play-file-watch
   },
+  {
+    groupIdBefore = com.lightbend.play
+    groupIdAfter = com.typesafe.play
+    artifactIdAfter = play-socket-io
+  },
   {
     groupIdBefore = com.lightbend.sbt
     groupIdAfter = com.github.sbt