9.0.0

API Breakage:

• JobQueue.add_job now takes the ensemble index as a positional parameter
• Force vector storage for summary vectors

New features:

• JobQueue.snapshot provide the user with a snapshot of the queue state that can be queried independently of run_context and run_arg
• JobQueue.execute_queue_async and JobQueue.stop_jobs_async provides asynchronous execution and stopping of queue
• Keep ensemble config nodes in an ordered data structure to avoid sampling differences over different build machines
• Export shared rng to Python
• Apply row scaling in the smoother update

Enhancements:

• Remove fs dependency for summary observation collector
• Force sequential execution of callbacks