Merge branch 'stable-3.0' into stable-3.1

* stable-3.0:
  Prevent persistent task listing interruptions on IOExceptions

Change-Id: Ie03efcc94ff8001edee557a6a413233085fab1b6
tree: bf48a7faaf2948e9aa0df99c55fc94e8d4775c9d
  1. .gitignore
  2. .mailmap
  3. .settings/
  4. BUILD
  5. LICENSE
  6. src/