```scala._``` (e.g. ```Option```) is imported by default. There are duplications for ```spray.routing.authentication._``` and ```spray.http._```.

Maybe the following would work:
```scala
import spray.client.pipelining._
import spray.json._
import spray.http._
import spray.httpx.SprayJsonSupport
import spray.routing.authentication._
import spray.util._
import javax.net.ssl.SSLContext
import scala.concurrent.ExecutionContext
import akka.actor.ActorSystem
```