 
 (use-package cperl-mode
   :commands (cperl-mode)
-  :mode (("\\.plx\\’" . cperl-mode))
   :init (progn
           ;; replace perl-mode with cperl-mode
           (mapc

            (setq cider-cljs-lein-repl "(cemerick.piggieback/cljs-repl (cljs.repl.rhino/repl-env))")))

(use-package clojure-mode
  :mode (("\\.clj\\'" . clojure-mode))
  :config (progn (define-clojure-indent
                     (forall 'defun)
                     (exists 'defun)

             mc/mark-all-like-this))

(use-package nxml
  :defer t)

(use-package org-ref
  :defer t
