Adding new hadoop styled API
Added getJobTracker to HazelcastInstance
Added JobTrackerConfig
Added AbstractJob to typesafely configure the mapreduce task
Added Map / MultiMap KeyValueSource implementations
Started reimplementation of operations
Added onKeys / keyPredicate methods
started implementing special ExecutorService for execution of MapReduce tasks
Making NodeEngine available
Added Javadoc for most classes and method
Fixed some JavaDoc issues
Started Client proxy
More client implementation
Added jobId to identify jobs in the cluster
Fixed compile error
Added basic unittests for MapReduce
Registered MapReduceService in ServiceManager
Adding job tracking