dbh201

This should be ready now. `gmake prep` downloaded, unpacked and patched most of the components, and I've fixed any errors related to userland-fetch. I also wrote a quick test script...

https://github.com/logisim-evolution/logisim-evolution/blob/49398db3f0e90793901ba2a1581c982bbdcdf31a/src/main/java/com/cburch/logisim/circuit/appear/CircuitAppearance.java#L471 I think this line was intended to deep-copy the `shapesBase` list, which would have fixed this bug. Unfortunately, there is no convenient way (that I know of) in Java...

I believe this may have to do with the mime-type setting in jpackage. A lot of servers report files with no extension (or erroneously for files with certain filetypes) as...

My previous suggestion was a bit absent minded: `application/x-logisim-evolution-circ+xml` would be my suggestion for MIME type. My concern about `application/xml` is that it's going to tack `.circ` extensions on XML...

So, to update this from here on, just change the version number and delete the sha256sums.txt file. Running `gmake publish` should do the rest.