Fixes #6310 - Fix typo and make the lock error message localized
Refs #6296 - return humanized task errors in separate field
Refs #6296 - support for searching for subset of action types
Merge pull request #75 from iNecas/issue/6296

Refs #6296 - support for searching for subset of action types
Merge pull request #73 from iNecas/issue/6310

Fixes #6310 - Fix typo and make the lock error message localized