Another question I can't solve on my own. When I type ' - a single quote - I don't want to see a closing one inserted automatically (this is Lisp, after all). The newLISP language bundle has this:
I'm betting you made a copy of the Lisp bundle to do this, meaning you copied over the old cruft that's inside it. Preference items need to be not in the language grammar but rather in a separate scoped preference item. This is the issue here, since there is no scope on the preference items the default preferences from the Source bundle are taking over.
I'll commit a fix to the built-in Lisp bundle to fix it there.