Removed redundant System object.
spark experiment fixes:
- gets event logs
- isUp is set to false when spark is stopped
Fixed some typos.
Added tmp dir initialization to Flink and Spark.
Added exception to log message in GeneratedDataSet.
Fixup Zookeeper & Aura beans.
Added runtime values to configuration.
resolves #13
Added default info for --fixtures flag in CLI command.
Fix copyFromLocal command in Hadoop 2.x does not generate directories recursively.
resolves #17
Fixed restarting HDFS system fails because start() is called twice.
resolves #18.
Rewrote the spring converters from java to scala.
Added Scala-Doc to all packages.
Added Sonatype-required information to pom.xml, settings.xml.