Fixed small documentation typo `onr` to `one`.
Merge pull request #626 from bakercp/bugfix-typo

Fixed small documentation typo `onr` to `one`.
flush underlying streams on close()/sync()
Merge branch 'develop' of https://github.com/pocoproject/poco into develop
fixed one-shot timer and maufunction of long start interval
Merge pull request #628 from Kontinuation/develop

Fixed one-shot timer and maufunction of long start interval