Update notes for submitted changes

* 1.  Using the INTERNEL_VIP variable in openstackrc and all openstack config files, in case of HA setup 2.  Clear all tcp sessions by restarting haproxy, if VIP is moved to different node. 3.  List all rabbitmq ip’s in rabbit_hosts variable at  nova.conf of compute node instead of the first rabbit ip. 4.  Add contrail-ha-check script(to monitor galera cmon/haproxy) to be triggered by contrail-hamon upstart script. 5.  Changed sql_connection in nova and glance conf to use localhsot instead of VIP 6.  Modifed cmon_param_template to take two more parameters required for contrail-cmon-monitor.sh Change-Id: I82c811620617c961576dda921cbc0c198130d0c4