Update of HP-41 module liste

[HP-Collection]

I renamed the .pdf so that is a) english and b) the same term as nounced in the forum here.
The newest version is actually 28th may. I had to wait for some weeks for latest "bugfixes" and informations concerning some overlays. I missed to update the date before publishing now. To keep it transparent I will NOT upload a new .pdf just to have a actual date. 28th may is actual.