Add JavaSparkJob changes

Author: velvia

README.md

@@ -34,6 +34,7 @@ See [Troubleshooting Tips](doc/troubleshooting.md) as well as [Yarn tips](doc/ya
 - Kill running jobs via stop context and delete job
 - Separate jar uploading step for faster job startup
 - Asynchronous and synchronous job API.  Synchronous API is great for low latency jobs!
+- Preliminary support for Java (see `JavaSparkJob`)
 - Works with Standalone Spark as well as Mesos and yarn-client
 - Job and jar info is persisted via a pluggable DAO interface
 - Named RDDs to cache and retrieve RDDs by name, improving RDD sharing and reuse among jobs. 

notes/0.5.3.markdown

@@ -5,6 +5,7 @@
 * HTTPS Support! (@koettert @TimMaltGermany / KNIME)
 * Load jars automatically on startup (@lossyrob / Azavea)
 * /data routes  (The KNIME team)
+* `JavaSparkJob`
 * Fix server-stop.sh so it works with spark-submit (@addisonj @RussellSpitzer @jmelching)
 * Upgrade to spray-json 1.3.2 (@v-gerasimov)
 * Upgrade joda-time to 2.2 (@jwalgran)