First release using GitHub releases.
Many small updates and lots of bug fixes from 4.2.
Known bugs:
"stocks" game has slightly awry formatting.
"ls" in pysh shouldn't be showing more than one tier of directories, but it does.
Credit to myself, @dentafrice for lots of help and advice throughout all of my versions, and just a little bit to @Akuhcap for some formatting, ideas, and testing early on.