Changing Hadoop to "Data Processing"

Changing "Hadoop Cluster by Sahara" to
"Data Processing Cluster by Sahara to be more
technically correct for non-hadoop clusters.

Change-Id: I16c0c482a1cec77e206ce9701f9e76aff5ae2402
Closes-Bug: #1371760
Merge "Changing Hadoop to "Data Processing""