fix faulty scala-steward upgrade of Scala.js (scala#85)

Author: SethTisue

.travis.yml

@@ -9,8 +9,8 @@ scala:
 
 env:
   - ADOPTOPENJDK=8  SCALAJS_VERSION=
+  - ADOPTOPENJDK=8  SCALAJS_VERSION=0.6.32
   - ADOPTOPENJDK=8  SCALAJS_VERSION=1.0.1
-  - ADOPTOPENJDK=8  SCALAJS_VERSION=1.0.0
   - ADOPTOPENJDK=11 SCALAJS_VERSION=
 
 install:

project/plugins.sbt

@@ -1,5 +1,5 @@
 val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("1.0.1")
+  Option(System.getenv("SCALAJS_VERSION")).filter(_.nonEmpty).getOrElse("0.6.32")
 
 addSbtPlugin("org.scala-lang.modules" % "sbt-scala-module" % "2.1.3")