Merge old- and new YetiShare templates
Merge YetiShareCore and YetiShareCoreSpecialOxycloud
It's still both yetishare and not only site specific as the name implies (e.g. only oxycloud.com specific).
1. letsupload.io uses the new way for anonymous, free- and premium account download but it can contain one (old) redirect-step before the new download way.
2. vishare.pl uses the new way only for (premium?) account downloads but the old way in free anonymous mode.
3. erai-ddl3.info uses only the new way (free- and premium account) - anonymous downloads are impossible.
Additionally it only allows downloads if the internal fileID is given -> Only items added via folders can be downloaded!
4. Oxycloud.com allows only premium account downloads.