Rename subscriptionData to filterParameter to match domgen conventions
Use constructor based injection for DataLoaders
Extract out common test code
Extract variable to coerce types
Add a simple class to contian information pertaining to subscription actions
Chase functionality that has neen moved to client
Rework ClientSession now that more functionality has moved to it
Initial work towards having a separate subscriptions queue
Merge branch 'master' of https://github.com/realityforge/replicant