refactor code in ECSImpl:
inside method initService:  changed : 
		serversToStart = calculateMetaData ( serversToStart ) 
to 
		serversToStart = calculateMetaData ( activeServers )
to have the metaData Sorted in ECS (the previuos version upon
initService just the serves would get the sorted metaData and ECS has
just list of active servers but not sorted!)

added method MoveData(...)

refactored method addNode()