Add implementation for GarbageCollector to MockBackendBundle.
Remove unnecessary constructor.
Rename propertie.
Add map store for DelayIQueue common storage.
Change QueueBacken implementation based on hazelcast.
Change storageFactory for GC.
Change lock.
Rename propertie.
Change QueueBacken implementation based on hazelcast.
Change constructor.
Remove unnecessary constructor.
Rename propertie.
Merged 'develop'.

Conflicts:
	assemble/src/main/resources/spring/backend/hazelcast.xml
Enable JMX in Hazelcast.
Add parameter poolSize to constructor and default.properties.
Remove unnecessary beans.
Refactoring. Add ItemListener to inner queue.
Add ThreadFactory.
Change default properties.
Small refactoring.