Please describe the problem:
When downloading an entire albumn from www.jamendo.com (either via the RB plugin, or via a webbrowser) the resulting folder/directory contains:

music tracks: *.mp3 or *.ogg

text files: "License.txt" and multiple readme files in different languages, such as "[en] Readme - www.jamendo.com .txt"

cover art: "artist - album.1.jpg" (single file, high resolution)

Examples of the file name used for the cover include:

Frozen Silence - Heart of Winter.1.jpg
Celestial Aeon Project - Aeon.1.jpg
etc

Steps to reproduce:
1. Using the Jamendo plugin or your webrowser download an album from Jamendo using bit-torrent
2. Save this to a folder in your music library
3. Wait for the download to finish
3. Check that the folder contains a single image named "artist - album.1.jpg"
4. Run RB (with the art-display plugin enabled)
5. Wait for RB to import the new album
6. Play a track from the new album
7. Notice the supplied art "artist - album.1.jpg" is not found


Actual results:
See step 7

Expected results:
I would like the art display plugin to find the Jamendo supplied image

Does this happen every time?
yes

Other information:
Possible ways to fix this
(1) If the art display plugin's "local art search" finds a single image in the folder, regardless of file name, use this
(2) Extend the list of names to include "%s %s.1.jpg" % (artist, album)
(3) Enhance the Jamendo plugin to manage the download and rename the album art to something like "Cover.jpg"

Idea (1) is crude and simple, but may get an inappropriate image for some people - depends how the organise their music.  Could do this with an additional check that the filename contains the artist, album or track name?

Idea (2) may need refinement for international characters in the filename

Idea (3) is a BIG change to the Jamendo plugin, and will not "fix" the cover art for existing art.