Upgrades.

* sbt 0.13.16
* Scala 2.10.7, 2.11.12, 2.12.4 and 2.13.0-M2
* Scala.js 0.6.21

Author: sjrd

.travis.yml

@@ -7,14 +7,14 @@ script:
   - sbt ++$TRAVIS_SCALA_VERSION 'set scalaJSStage in Global := FullOptStage' testSuiteJS/test
   - sbt ++$TRAVIS_SCALA_VERSION publishLocal
 scala:
-  - 2.10.6
-  - 2.11.11
-  - 2.12.2
-  - 2.13.0-M1
+  - 2.10.7
+  - 2.11.12
+  - 2.12.4
+  - 2.13.0-M2
 jdk:
   - oraclejdk8
 env:
-  - SCALAJS_VERSION=0.6.18
+  - SCALAJS_VERSION=0.6.21
   - SCALAJS_VERSION=1.0.0-M1
 
 cache:

build.sbt

@@ -1,4 +1,4 @@
-crossScalaVersions in ThisBuild := Seq("2.11.11", "2.10.6", "2.12.2", "2.13.0-M1")
+crossScalaVersions in ThisBuild := Seq("2.12.4", "2.11.12", "2.10.7", "2.13.0-M2")
 scalaVersion in ThisBuild := (crossScalaVersions in ThisBuild).value.head
 
 val commonSettings: Seq[Setting[_]] = Seq(
@@ -61,7 +61,8 @@ lazy val testSuite = crossProject.
   settings(commonSettings: _*).
   settings(
     testOptions +=
-      Tests.Argument(TestFramework("com.novocode.junit.JUnitFramework"), "-v", "-a")
+      Tests.Argument(TestFramework("com.novocode.junit.JUnitFramework"), "-v", "-a"),
+    scalacOptions += "-target:jvm-1.8"
   ).
   jsSettings(
     name := "java.time testSuite on JS"

project/build.properties

@@ -1 +1 @@
-sbt.version=0.13.15
+sbt.version=0.13.16

project/build.sbt

@@ -1,5 +1,5 @@
 val scalaJSVersion =
-  Option(System.getenv("SCALAJS_VERSION")).getOrElse("0.6.18")
+  Option(System.getenv("SCALAJS_VERSION")).getOrElse("0.6.21")
 
 addSbtPlugin("org.scala-js" % "sbt-scalajs" % scalaJSVersion)