Results 4 issues of Alan

I cloned the repository, installed the dependencies, and built Castle. When running `nwjs/nw castle.js` from the `bin` directory, the program exists with `Module /castle/bin/castle.js requires node.js version 4.0.0 or higher`....

I downloaded CastleDB from the NWJS package link from the README and moved the package into the nwjs directory. When I run the app with the sample file from the...

The home page (https://ppxlib.readthedocs.io/en/latest/) links to Index (https://ppxlib.readthedocs.io/en/latest/genindex.html), which has no content, and Module Index (https://ppxlib.readthedocs.io/en/latest/py-modindex.html), which does not exist. I cannot find API documentation on that site. Is this...

Should fix the issue at https://github.com/alan-j-hu/llvm-dune/issues/18. @jordydickinson do you think you could test this out and make sure it works for you?