Remove testing from travis

Tests on travis have not passed in more than a month. Mesosphere seems
to use jenkins.
I am deactivating it for the time being.

Change-Id: I4572162e9b569aa2d4448697ed80163fa41f6097

.travis.yml

@@ -11,15 +11,13 @@ cache:
     - $HOME/.sbt
     - $HOME/.ivy2
 script:
-  - sbt clean scapegoat doc coverage test
+  - sbt clean scapegoat doc package
 before_script: # the automated download fails sometimes
     - mkdir -p $HOME/.sbt/launchers/0.13.11/
     - test -r $HOME/.sbt/launchers/0.13.11/sbt-launch.jar || curl -L -o $HOME/.sbt/launchers/0.13.11/sbt-launch.jar http://dl.bintray.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/0.13.11/sbt-launch.jar
     - ./patch_version.sh
-after_success:
-  - sbt coverageReport coveralls
 before_deploy:
-  - export RELEASE_JAR_FILE=$(ls target/scala*/marathon-assembly*.jar)
+  - export RELEASE_JAR_FILE=$(ls target/scala*/marathon*.jar)
   - export VERSION=$(echo $TRAVIS_TAG | sed 's/^v//' )
   - echo "deploying $RELEASE_PKG_FILE to GitHub releases"
   - tar czvf marathon-$VERSION.tgz $RELEASE_JAR_FILE

src/main/scala/mesosphere/marathon/api/akkahttp/EntityMarshallers.scala

@@ -1,17 +1,17 @@
 package mesosphere.marathon
 package api.akkahttp
 
-import akka.http.scaladsl.marshalling.{Marshaller, ToEntityMarshaller}
+import akka.http.scaladsl.marshalling.{ Marshaller, ToEntityMarshaller }
 import akka.http.scaladsl.model.MediaTypes.`application/json`
 import akka.http.scaladsl.model.StatusCodes
-import akka.http.scaladsl.server.{Rejection, RejectionError, Route}
-import akka.http.scaladsl.unmarshalling.{FromEntityUnmarshaller, Unmarshaller}
+import akka.http.scaladsl.server.{ Rejection, RejectionError, Route }
+import akka.http.scaladsl.unmarshalling.{ FromEntityUnmarshaller, Unmarshaller }
 import akka.util.ByteString
-import com.wix.accord.{Failure, RuleViolation, Success, Validator}
+import com.wix.accord.{ Failure, RuleViolation, Success, Validator }
 import kamon.metric.SubscriptionsDispatcher.TickMetricSnapshot
 import mesosphere.marathon.api.v2.Validation
 import mesosphere.marathon.core.appinfo.AppInfo
-import mesosphere.marathon.raml.{LoggerChange, Metrics}
+import mesosphere.marathon.raml.{ LoggerChange, Metrics }
 import mesosphere.marathon.core.plugin.PluginDefinitions
 import mesosphere.marathon.state.AppDefinition
 import play.api.libs.json._