Merge pull request #1 from vinted/features/hadoop-2.0

Features: Hadoop 2.0
Compile against CDH version of hadoop-client, mr 1.0
Merge pull request #2 from vinted/features/sweeper-hadoop-2.0-cdh-compat

Compile against CDH version of hadoop-client, mr 1.0
Add partitioner with portal support
Add PortalPartitioner