Ok, this fixes a few more things that got broken. I will say that so far no-one has actually reported an issue with the insert/remove cover functionality itself (outside of not handling epubs that have no guide as created by FFDL). Its just a bunch of *other* things I broke along the way or are only now being reported. So either the covers stuff is working fine, or else you guys are battling all running with so many other options turned on those issue are stopping you from seeing if the covers work
Anyways - changes in this beta:
- Ensure only the few options that are safe to work on DRM encrypted epubs are attempted
- If other options change a file in the epub that later gets deleted, don't try to write the changed file anyway at the end!
- Fix for inserting metadata jackets