HDT-41: Provide existing MR functionality
- ported Mapper/Reducer/Partioner/Driver Wizards
- ported Image lookup
- ported Map-reduce project wizard
- using runtimes from specified hadoop location rather as runtime jars packed in plugin
- ported 'Run On Hadoop'
- ported Hadoop location preference at Window->Preferences->Hadoop
- ported clusterView
- Modified hadoop perspective to contain clusterView
HDT-49 : Job does not launch on cluster
- Generated mapred-site.xml so that jobs can run on cluster
- using mapred.job.tracker instead of deprecated mapreduce.jobtracker.address