Added site_masters_ratio (https://issues.redhat.com/browse/JGRP-2581)
Added site_masters_ratio (https://issues.redhat.com/browse/JGRP-2581)

pferraro/JGroups,belaban/JGroups,belaban/JGroups,rhusar/JGroups,pferraro/JGroups,belaban/JGroups,pferraro/JGroups,rhusar/JGroups,rhusar/JGroups