thinks:
o Full progs modularity
o CSQC should now be just a matter of creating the builtin functions and
loading the code.
o total independence from progs globals, functions and entity field layouts
on the conditoin that their definitions have not been stripped from the
progs file.
o optional (though currently forced on) type checking on access to progs
entity fields from C
o the progs engine is fully shared between nq and qw.
nq for abyss etc (ie, the magical -<mod> args).
The interface to the message subsystem got a revamp and all the mods to the .c
files reflect this. currently a little ugly, but I plan on abstracting msg
further to clean it up and make it more oo.
