Merge branch 'develop' of github.com:/DirkR/capturadio into develop

* 'develop' of github.com:/DirkR/capturadio: (21 commits)
  Mocked urllib2.urlopen() in test_recorder.py
  Extended test audio files
  Extracted setup of configuration into fixture.
  Completed test for Recorder._add_metadata()
  Removed unneaded urllib2-Package prefix
  Removed debug output.
  Check for defined shows.
  Made code more Python3 compliant
  Started test test_add_metadata() for class capturadio.Recorder
  Added Testfiles
  Added initial tests for iclass capturadio.Recorder
  Fixtures refacturized to own package.
  Removed obsolete code.
  test_config.py got a docstring
  Recorder._write_stream_to_file() and Recorder._copy_file_to_destination() simplified.
  Organized/centralized imports
  Added tests test_change_destination(), test_station_ids() and test_add_station().
  Add destination folder, if not exists.
  test configuration files removed.
  CLI argument parsing converted from argparse to docopt.
  ...
Repaired episode duration in rss feed.

This fixes #10