Add ClientFilter
Small refactor in QueryDecorator to make it more easy to use
Defend JobStorage by returning optionals
Create RuntimeConfigurator to hold runtime objects and configure stuff
Update the PersistentJobStorage to the new client-based needs
Update osgi services
Update osgi services for persistence
Update push-notifier
Update webservice code
Update core pom with the new services
Modify VolatileJobStorage to filter by client