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Denver Gingerich

Copyleft Compliance: mostly minor fixes to new pgs

These are mostly minor edits (typo fixes, etc.) to the enforcement
strategy and firmware liberation pages that were just added.

The one large change was to replace the first paragraph of the
enforcement strategy page with the full Conservancy description used
previously. The glue text used to shorten it appeared unsalvageable
and it wasn't immediately obvious how to replace it with something
better, so we used the full description instead.

def organize_media_by_event(eventmedia_queryset):
    """Organizes event media by event.

    Given a queryset of event media, it returns a list of 'objects'
    with the following properties:

    * event (event object)
    * date (date object for most recently posted media from event)
    * media_list (a string of the available media types)
    """

    media_by_event = {}
    for media in eventmedia_queryset:
        media_by_event.setdefault(media.event.id, []).append(media)
    mbe = [{'event': x[0].event,
            'date': max(y.date_created for y in x),
            'media_list': ', '.join(set(y.get_format_display() for y in x))}
           for x in media_by_event.values()]
    mbe.sort(key=(lambda x: x['date']), reverse=True) # sort by date
    return mbe