Use Kafka 2.10 (again)

project/SparkBuild.scala

@@ -286,10 +286,11 @@ object SparkBuild extends Build {
 
     libraryDependencies ++= Seq(
       "org.apache.flume"      % "flume-ng-sdk"     % "1.2.0" % "compile"  excludeAll(excludeNetty, excludeSnappy),
-      "org.apache.kafka"      % "kafka_2.9.2"      % "0.8.0-beta1"
+      "com.sksamuel.kafka"   %% "kafka"            % "0.8.0-beta1"
         exclude("com.sun.jdmk", "jmxtools")
         exclude("com.sun.jmx", "jmxri")
-        exclude("net.sf.jopt-simple", "jopt-simple"),
+        exclude("net.sf.jopt-simple", "jopt-simple")
+        excludeAll(excludeNetty),
       "org.eclipse.paho"      % "mqtt-client"      % "0.4.0",
       "com.github.sgroschupf" % "zkclient"         % "0.1"                excludeAll(excludeNetty),
       "org.twitter4j"         % "twitter4j-stream" % "3.0.3"              excludeAll(excludeNetty),