Make spray compatible with Java 9 (#3126)

frameworks/Scala/spray/build.sbt

@@ -2,7 +2,7 @@ name := "spray-benchmark"
 
 organization := "io.spray"
 
-scalaVersion := "2.11.8"
+scalaVersion := "2.11.12"
 
 version := "1.0"
 

frameworks/Scala/spray/project/build.properties

@@ -1 +1 @@
-sbt.version=0.13.16
+sbt.version=1.0.4

frameworks/Scala/spray/project/plugins.sbt

@@ -1,3 +1 @@
-addSbtPlugin("io.spray" % "sbt-revolver" % "0.8.0")
-
-addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.3")
+addSbtPlugin("com.eed3si9n" % "sbt-assembly" % "0.14.6")