Add thread id to debug logs

Makes it easier to troubleshoot S3 debug logs.
Merge branch 'add-thread-id' into develop

* add-thread-id:
  Add thread id to debug logs
Update changelog with latest bug fixes
Bumping version to 1.3.16
Merge branch 'release-1.3.16' into develop

* release-1.3.16:
  Bumping version to 1.3.16