Added after_processing hook and example usage (VOV-2167)
Makes master file management strategy configurable (VOV-2171)
Added asynchronous delete and move jobs

Add overridable move filename method and refactor previous commit

Cleanup file_location if file already deleted and change logging level to warn

Added tests for async jobs

Fixed tests

Only create directories when file to move exists; Change log level to error
Merge pull request #188 from avalonmediasystem/VOV-725

Vov 725