[ maxima-Bugs-609464 ] 1+%e,numer and %e^%e,numer



To be more explicit, we could have 



(defmfun simplifya-numer(x y)
    ;; $numer is t %enumer is nil
  (cond ((atom x) (cond ((eq x '$%pi)  %pi-val)
            (t x)))
    (t (simplifya-regular x y))))
     
(defmfun simplifya-regular (x y)
    ;; $numer is nil %enumer is nil
  (cond ((atom x) x)
    (t ... rest copied from simplifya)))

(defmfun simplifya-numer-enumer (x y)
    ;; $numer is t, $%enumer is t
    (cond ((atom x) (cond ((eq x '$%pi)  %pi-val)
              ((eq x '$%e)   %e-val)
              (t x)))
      (t (simplifya-regular x y))))

;;etc for enumer and not numer..