Increasing some Hazelcast membership change detection properties as per https://groups.google.com/forum/#!searchin/hazelcast/Azeez/hazelcast/x-skloPgl2o/PZN60s85XK0J

git-svn-id: https://svn.wso2.org/repos/wso2/carbon/kernel/trunk@179548 a5903396-d722-0410-b921-86c7d4935375