Replace :eval/:repl with autodef functions

+ :eval => set-eval-handler!
+ :repl => set-repl-handler!
+ Updates all internal references.

modules/lang/julia/config.el

@@ -3,7 +3,7 @@
 (use-package julia-mode
   :interpreter "julia"
   :config
-  (set! :repl 'julia-mode #'+julia/repl)
+  (set-repl-handler! 'julia-mode #'+julia/repl)
 
   ;; Borrow matlab.el's fontification of math operators
   ;; From <https://ogbe.net/emacsconfig.html>