push rabbitmq server password to the nodes
set attribute to propagate rabbitmq connection URL
wait for rabbitmq.conf to appear

/opt/rocks/etc/rabbitmq.conf is pushed through 411 to the nodes
At the first boot after the installation it will take some time
before the file gets there, so we need to wait for it and restart
the daemons
make installation of img-storage deamon dependent on attribute

now by default all vm-container and all nas will be running
the img-storage daemon.
If the user wants to change it, he/she can use img_storage_nas
and img_storage_vm attribute to select the hosts