Not all fanart exsists, so added check for fanart, and default image

[KasperHelsted]

No description provided.

[anorm]

Thank you for the PR

Some issues to fix:

1. It doesn't work on channels (i.e. dk/Play extra)
2. It doesn't work on (some?) shows (i.e. dk/MTV/Awkward)
3. The image itself does not look good (see below)

[KasperHelsted]

Should have pushed a fix for the last error, i have no new image for the "No image found". May look into it later.

[anorm]

Nice

Could you use urllib.urlencode for converting strings into valid URLs instead of your custom function?

[KasperHelsted]

I tried it, but it would also change the :// near the http in the begning since it's trying to change any special chars. it would also change all the . and /

Then i would have to deconstruct the url and then use urllib.urlencode on the filename