Attach pictures and documents to entries

[polsys]

Instead of writing notes on pages, I'd like to attach pictures. For an article it wouldn't be completely unreasonable to attach the PDF file.

The files could be stored in a subdirectory next to the project file. Of course, then there needs to be handling for broken links, existing directories, renaming and all the other fun. Sharing the project would be more complicated.

Another option would be using an archive format like ZIP for the project. This would have the advantage of compressing the textual content.