Initial Configuration for Clustering

To try out clustering do the following,

1. Rename configuration/initial/05-clustering.xml.conf to configuration/initial/05-clustering.xml
2. Run the controller with these options

    ./run.sh -XX:MaxPermSize=512m

Change-Id: I61ede6cc083ce5fc722c44f0c127f4a03e2869d0
Signed-off-by: Moiz Raja <moraja@cisco.com>