Please add a option to download images from the <media:content> tag

[kremm...@gmail.com]

Hello,

I tried to use rssdler to automatically download images from an RSS feed. The problem is,
that rssdler loads the html files from the <link> tags. I need an option to say rssdler to use
the URL from the url attribute of the <media:content> tags.

Could you please add an option to specify the tags and/or attributes it should use for the
download URLs?

The RSS feed looks like (if you need the original RSS feed, I can send it to you per PM):

<?xml version="1.0" encoding="UTF-8"?>
<rss version="2.0" xmlns:media="http://search.yahoo.com/mrss/" xmlns:atom="http://www.w3.org/2005/Atom">
  <channel>
    <title>...</title>
    <description>...</description>
    <link>https://somesite/description.html</link>
    <language>en-US</language>
    <lastBuildDate>Sat, 16 Jul 2016 03:37:14 -0400</lastBuildDate>
    <pubDate>Sat, 16 Jul 2016 03:37:14 -0400</pubDate>
    <item>
      <title>...</title>
      <author>...</author>
      <description>...</description>
      <media:content url="https://somesite/image123.jpg" type="image/jpeg" medium="image" isDefault="true"/>
      <media:thumbnail url="https://somesite/image_thumb123.jpg" height="50" width="50"/>
      <link>https://somesite/description123.html</link>
      <guid>https://somesite/description123.html</guid>
      <pubDate>Tue, 26 May 2015 09:05:53 -0400</pubDate>
    </item>
    ...
  </channel>
</rss>