Better installation steps

[nichollsh]

The current setup is a bit too involved, so it would be better to either:

1. Make the instructions very clear, or
2. Create a makefile or script that handles everything automatically

[nichollsh]

Seems like converting the program to a package would be quite easy to do.
https://pkgdocs.julialang.org/v1/creating-packages/

This would allow dependencies to be included automatically when first running the code. You can also add a "build" step, where SOCRATES would be compiled.

It is also possible to export packages as single binary files, which may be useful in some cases.

[nichollsh]

This has been implemented in the recent changes, although more improvements could be made from here.