Fixes #100

SequenceIO and KafkaWordCount do not load related jars. Working on this.
Yes see my note above. This is a shortcoming in how we currently package. Loading just task classes by a task specific class loader isolates the resources used for just this task. At the end of the task these resources would be claimed by the GC. But given I move the application.jar into AppDescription then each Executor could be launched with it's classpath modified to include where this serialized jar has been placed.