report_interval is set to 7 seconds for nova controller components. Auto increment control will ensure 2 process will not use the same auto-incremented value to update database. Keepalived config is updated, such that haproxy failures will have a dependency check and the VIP movement will be based on the availability of the haproxy. Cleaned up duplicates in wsrep config. Closes-Bug: #1384072

Change-Id: Ia36bd432685b17e1b9233d315d725c6638076c3c