More notes.
Let's just make these utility functions available.
I'll probably forget and use them again.
I don't want to import them from mvbutils, though;
need stable access and don't want to impose mvbutils on everybody.
Many more exports.
Anything needed for run() has to be here
(not sure why though).
Bump.
Added parameters, requirements and provisions as Specifier slots.

Defined initialize method for
BaseCharModelSpecifier
Seems to work OK.

Also some re-indenting.
In server.R:
Added require(RJSONIO)

Also a print statement to trace a peculiar error only seen when running in commandline R.
Remove cq (but later, added cq and others to aaa.R)
Utility functions mostly from mvbutils