registry based persistence for subscriptions - initial impl.
registry based persistence - refactored the RegistryManager and PersistenceManager
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos into persistence
registry based persistence - referring the new implementation
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos into persistence
continuation od Registry based Persistence
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos into persistence
initial complete implementation for storing subscriptions in registry
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos into persistence
adding the unscubscribed subscription instances to a different path in registry
Merge branch 'master' of https://git-wip-us.apache.org/repos/asf/incubator-stratos into persistence