download files other than images

[tpokorra]

at the moment, only images (identified by src=/images) are downloaded.

For example, this excel file is not downloaded:

in Mediawiki notation:

[[Datei:Test.xlsx]]

and in the output:

<a href="/index.php?title=Datei:Test.xlsx" title="Datei:Test.xlsx">Datei:Test.xlsx</a>

[tpokorra]

In fact, that should work, but we look for File: instead of Datei:

https://github.com/SolidCharity/exportMediaWiki2HTML/blob/master/exportMediaWiki2Html.py#L114