Embalm/Eternalize cleanup
Accompanies going over the FTP to make sure all files are present and correctly named.
Users can now find exact filenames for embalm/eternalize tokens in appropriate editions, just like other tokens.
@friarsol while embalm/eternalize cards are copies, they are also tokens according to Oracle and even how Forge categorizes them, so I think it's OK to put them in the [tokens] list?
Set code up to better accomodate any future alternate images that might occur from reprints, etc.
Also added another layer to ImageFetcher (thanks @kevlahnota ) to further insulate users from Forge not being able to find their files.
Closes #1602 (closed)
Also aligned reminder text a little better to Oracle. Embalm looks great, but note "and" instead of "," for Eternalize:
