My volumize PR introduced too many issues. Revert to previous version of NewsDownloader until they can be resolved.
Fixes#8867
Reintroduces #8799, #6234
When this feature is enabled on a feed and that feed is
synced, all new feed entries will be collected into a new
single EPUB file. This is achieved by implementing a feed
history feature (downloaded feeds are added as M5D hashes
to a LuaSettings file), and by introducing additional
methods into epubdownloader.lua that allow for multiple
HTML documents to be added into single EPUB file.
* Fix XML, introduce some better error messages, etc.
See roygbyte/newsdownloader.koplugin for more info
* Fix feed attribute saving snafu; Change menu labels; etc.
Also:
- Change default feed
- Change "remove" label to "delete"
- Hide menu after feed sync
