Add support for Podlove Simple Chapters (http://podlove.org/simple-chapters)

[brot]

Implemented support for the extension of the Atom Syndication and RSS 2.0 file format with simple chapter information described in this specification:
http://podlove.org/simple-chapters/

Example:
In [1]: import feedparser

In [2]: feed = feedparser.parse('http://hoersuppe.de/vorcast/')

In [3]: feed['entries'][0]['sc_chapters']
Out[3]: 
{'chapters': [{'start': u'00:00:12.000',
   'start_parsed': datetime.timedelta(0, 12),
   'title': u'Livekalender'},
  {'start': u'00:02:24.000',
   'start_parsed': datetime.timedelta(0, 144),
   'title': u'Podcatcher'}],
 'version': u'1.0'}

[erlehmann]

I suggest to use CMML instead, see http://blog.dieweltistgarnichtso.net/zu-podlove-simple-chapters.

[kurtmckee]

Thanks for that link, erlehmann! I don't have an opinion on one format versus the other, however, and there appears to be demand for PSC support. Its inclusion in feedparser won't affect anyone's ability to add CMML support as well.

@brot: I'll review this as soon as possible.

[erlehmann]

I'll see if i can add CMML support then – GNOME media player Totem outputs chapter marks in it.

[brot]

@kurtmckee
Thanks. I will try to also include the version 1.1 in the next days if I find the time :-)