edit doc.
fix bug in example code.
	modified:   aex/README
	modified:   aex/ae_rand_perm.mac
edit doc.
define aex_p  via defmfun1
document, etc. for iargs, iop.
	modified:   aex/aex-core.lisp
document and fix deep copy function
	modified:   aex/aex-core.lisp
document funcs and us defmfun1
	modified:   aex/aex-core.lisp
	modified:   aex/rtests/rtest_aex.mac
	modified:   all-lisps.sh
fix deep_copy
	modified:   aex/aex-core.lisp
fix doc a bit