Initial works for Hazelscast feature
Hazelcast for MB 3.0.0 : completed cluster namager
Removing unnecessary files
Hazelcast related changes
configure GCGraceSeconds through andes_virtualhosts.xml
MB changes to implement coordination using Hazelcast
Merge pull request #23 from sperera/Hazelcast

Changes to implement coordination using Hazelcast
Merge pull request #22 from sajinidesilva/gc_grace_seconds

configure GCGraceSeconds through andes_virtualhosts.xml
Removing zookeeper ependencies
Merge pull request #25 from sperera/HazelcastFurther

Removing zookeeper dependencies
gc grace default value added to the code
adding refactorings.
Merge pull request #27 from abeykoon/refectoring-stage1

adding refactorings.
Merge pull request #26 from sajinidesilva/gc_grace_new

gc grace default value added to the code
Fix:Subscriptions with same IDs created in diffrent nodes are overiding each other's DB entries
upadating to cater a missing import.
Merge pull request #30 from abeykoon/refectoring-stage1

upadating to cater a missing import.
Merge pull request #29 from sperera/HazelcastFurther

Fix:Subscriptions with same IDs which are created in different nodes, are overriding each other's DB entries
added fixes for MQTT.
Merge pull request #32 from abeykoon/fix_MQTT_functionality

added fixes for MQTT subscriptions and some refactoring.