Removal of invalid chars (ÆØÅ)

[f-o]

Hello,

The script seems to be completely removing any "illegal" chars in the folder/filenames, as per the text.py utility-file.
Namely I'm referring to the Danish/Norwegian Æ, Ø, and Å.
This leads to filenames being incorrect, and breaks media players possibilities to correctly search for metadata.

Per naming conventions, the proper replacement mapping would be:

• æ - ae
• ø - oe
• å - aa

I believe this is a simple oversight in the script, as these are possible edge cases. But it does affect the script in a way that breaks DK/NO services.

We can parse the titles manually in the specific service files, but instead of having repeat code, I feel it would be best to address this issue in the main filenamify() function.
A simple fix could be:

title = title.replace("æ", "ae").replace("ø", "oe").replace("å", "aa")