Yet more built-ins and keywords for octave

I'm thinking about creating a script to list all the built-ins included with a typical octave install, rather than adding them piecemeal. Is that encouraged? Do we run the risk of spending too much time in regex? My Octave has a lot of built-ins, more than 1000, but some number are from packages not typically included by default.

If that's not the way we want to go, I'll keep slowly adding them as I use them.