v2.1.2

Compute

• Function.delete_jobs was failing to implement the delete_results parameter, so job result blobs
  were not being deleted. This has been fixed.
• Add delete_results parameter to Function.delete for consistency.
• Job.statistics field added which contains statistics (CPU, memory, and network utilization) for the
  job. This can be used to determine the minimal resources necessary for the Function after some
  representative runs.