[Backlog-644] - Create CDH4.7 Hadoop shim

1. cdh42 was copied to cdh47
2. dependencies were updated in build.properties
3. Eclipse project was modified to reflect the renaming
4. sanity check was done on CDH 4.7 demo VM (incomplete only HDFS read/write was tested)
5. Component process has been established for the following hadoop components:
     - COMP-865 - hadoop-client-2.0. for cdh4.7
     - COMP-866 - hive-jdbc-0.10.0 for cdh4.7.0
     - COMP-867 - hbase-0.94.15 for cdh4.7
     - COMP-868 - sqoop-1.4.3 for cdh4.7.0
     - COMP-869 - pig-0.11.0 for cdh4.7.0