Merge changes I3a1c33a4,I66f9fd6c into stable-3.1

* changes:
  TasksStorage: Add unit tests for reset() and resetAll()
  TasksStorage: Add canStartDifferentUris unit test
tree: 29598fa11623fddb18f930091853a4daf334ad86
  1. .gitignore
  2. .mailmap
  3. .settings/
  4. BUILD
  5. LICENSE
  6. src/