Log Message:
Update to 0.16:

Version 0.16
------------

(bugfix release, released on May 16, 2015)
- Fix typo preventing the security confirmation prompt from working (#303)
- Improve handling of systems with improperly configured file system encoding (#289)
- Fix "All archives" output for attic info. (#183)
- More user friendly error message when repository key file is not found (#236)
- Fix parsing of iso 8601 timestamps with zero microseconds (#282)