assorted version bumps

Author: SethTisue

.travis.yml

@@ -4,10 +4,10 @@ scala:
   - 2.13.0
 
 env:
-  - SCALAJS_VERSION=         ADOPTOPENJDK=8
-  - SCALAJS_VERSION=0.6.29   ADOPTOPENJDK=8
-  - SCALAJS_VERSION=1.0.0-M8 ADOPTOPENJDK=8
-  - SCALAJS_VERSION=         ADOPTOPENJDK=11
+  - SCALAJS_VERSION=          ADOPTOPENJDK=8
+  - SCALAJS_VERSION=0.6.31    ADOPTOPENJDK=8
+  - SCALAJS_VERSION=1.0.0-RC2 ADOPTOPENJDK=8
+  - SCALAJS_VERSION=          ADOPTOPENJDK=11
 
 before_install:
   # adding $HOME/.sdkman to cache would create an empty directory, which interferes with the initial installation

project/plugins.sbt

@@ -1,7 +1,7 @@
 val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.29")
+  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.31")
 
-addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.1.2")
+addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.1.3")
 
 addSbtPlugin("org.portable-scala" % "sbt-scalajs-crossproject" % "0.6.1")
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)