Scala 2.13.0-RC1 support (#254)

(cherry picked from commit 4a1eda6)
(cherry picked from commit cb7da35)

.travis.yml

@@ -26,7 +26,7 @@ matrix:
 scala:
   - 2.12.8
   - 2.11.12
-  - 2.13.0-M3
+  - 2.13.0-RC1
 
 script:
   - sbt -DscalaJSStage=full ++$TRAVIS_SCALA_VERSION validateCode testOnly mimaReportBinaryIssues

build.sbt

@@ -18,7 +18,7 @@ val scala213Version = "2.13.0-M3"
 val specsBuild = Def.setting[Seq[ModuleID]] {
   val specsVersion = CrossVersion.partialVersion(scalaVersion.value) match {
     case Some((2, 10)) => "3.9.1"
-    case _ => "4.0.2"
+    case _ => "4.5.1"
   }
 
   Seq("org.specs2" %% "specs2-core" % specsVersion)
@@ -77,7 +77,7 @@ lazy val commonSettings = scalariformSettings(autoformat = true) ++ Seq(
     },
     scalaVersion := ScalaVersions.scala212,
     crossScalaVersions := Seq(
-      ScalaVersions.scala210, ScalaVersions.scala211, ScalaVersions.scala212, scala213Version
+      ScalaVersions.scala211, ScalaVersions.scala212, scala213Version
     ),
     ScalariformKeys.preferences := ScalariformKeys.preferences.value
       .setPreference(SpacesAroundMultiImports, true)
@@ -120,8 +120,8 @@ lazy val `play-json` = crossProject.crossType(CrossType.Full)
       ProblemFilters.exclude[ReversedMissingMethodProblem]("play.api.libs.json.DefaultReads.BigIntegerReads")
     ),
     libraryDependencies ++= jsonDependencies(scalaVersion.value) ++ Seq(
-      "org.scalatest" %%% "scalatest" % "3.0.5-M1" % Test,
-      "org.scalacheck" %%% "scalacheck" % "1.13.5" % Test,
+      "org.scalatest" %%% "scalatest" % "3.0.8-RC2" % Test,
+      "org.scalacheck" %%% "scalacheck" % "1.14.0" % Test,
       "com.chuusai" %% "shapeless" % "2.3.3" % Test,
       "org.typelevel" %% "macro-compat" % "1.1.1",
       "org.scala-lang" % "scala-compiler" % scalaVersion.value % "provided",

project/plugins.sbt

@@ -5,7 +5,7 @@
 resolvers ++= DefaultOptions.resolvers(snapshot = true)
 resolvers += Resolver.typesafeRepo("releases")
 
-addSbtPlugin("com.typesafe.play" % "interplay" % sys.props.get("interplay.version").getOrElse("1.3.18"))
+addSbtPlugin("com.typesafe.play" % "interplay" % sys.props.get("interplay.version").getOrElse("2.0.6"))
 
 addSbtPlugin("pl.project13.scala" % "sbt-jmh" % "0.2.24")
 
@@ -18,4 +18,6 @@ addSbtPlugin("org.scalariform" % "sbt-scalariform" % "1.8.0")
 
 addSbtPlugin("de.heikoseeberger" % "sbt-header" % "3.0.1")
 
-addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.26")
+addSbtPlugin("org.scala-js" % "sbt-scalajs" % "0.6.27")
+
+addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.0")