when can't get instance of Hazelcast, better idempiere should work normal like on standalone mode

refe port 9, 10 at:https://groups.google.com/forum/#!topic/idempiere/hRHiX6ZC2Ac

actually, Broadcast don't reply Hazelcast. when we stop all hazelcast bundle, idempiere still well work on standalone mode.

so in case can't get Hazelcast instance (by network error can't join cluster, by hazelcast bundle is crash, stop,....),
better let idempiere work normal. or maybe have indicate work on standalone mode