Add stdout logging

See
* https://github.com/heroku/rails_12factor
* https://adam.heroku.com/past/2011/4/1/logs_are_streams_not_files/
Merge remote-tracking branch 'origin/master'

* origin/master:
  First step definition for "add a torrent"
  Fist feature - share a torrent (stub)
  Updated cucumber gem