Update akka-http's dependencies (#3120)

Most importantly, update the coursier dependency for compatibility with
Java 9.

frameworks/Scala/akka-http/build.sbt

@@ -1,7 +1,7 @@
 enablePlugins(JavaAppPackaging)
 
-val akkaVersion = "2.5.6"
-val akkaHttpVersion = "10.0.10"
+val akkaVersion = "2.5.7"
+val akkaHttpVersion = "10.0.11"
 
 organization := "com.typesafe.akka"
 
@@ -9,7 +9,7 @@ name := "akka-http-benchmark"
 
 version := "0.0.1-SNAPSHOT"
 
-scalaVersion := "2.12.3"
+scalaVersion := "2.12.4"
 
 resolvers += "Akka Snapshot Repository" at "http://repo.akka.io/snapshots/"
 
@@ -17,8 +17,8 @@ libraryDependencies ++= Seq(
   "com.typesafe.akka" %% "akka-http" % akkaHttpVersion,
   "com.typesafe.akka" %% "akka-http-spray-json" % akkaHttpVersion,
   "com.typesafe.akka" %% "akka-stream" % akkaVersion,
-  "mysql" % "mysql-connector-java" % "5.1.44",
-  "com.zaxxer" % "HikariCP" % "2.7.2",
+  "mysql" % "mysql-connector-java" % "5.1.45",
+  "com.zaxxer" % "HikariCP" % "2.7.4",
   "org.scalatra.scalate" %% "scalate-core" % "1.8.0",
   "org.scalatest" %% "scalatest" % "3.0.4" % "test"
 )

frameworks/Scala/akka-http/project/plugins.sbt

@@ -2,7 +2,7 @@
 // Workaround for https://github.com/coursier/coursier/issues/450
 classpathTypes += "maven-plugin"
 
-addSbtPlugin("org.scalariform" % "sbt-scalariform" % "1.8.1")
-addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.2.2")
-addSbtPlugin("io.get-coursier" % "sbt-coursier" % "1.0.0-RC11")
+addSbtPlugin("org.scalariform" % "sbt-scalariform" % "1.8.2")
+addSbtPlugin("com.typesafe.sbt" % "sbt-native-packager" % "1.3.2")
+addSbtPlugin("io.get-coursier" % "sbt-coursier" % "1.0.0-RC13")
 

frameworks/Scala/akka-http/project/project/plugins.sbt

@@ -1 +1 @@
-addSbtPlugin("io.get-coursier" % "sbt-coursier" % "1.0.0-RC11")
+addSbtPlugin("io.get-coursier" % "sbt-coursier" % "1.0.0-RC13")