 (setq ediff-split-window-function 'split-window-horizontally)
 ;; ediff-revision cleanup.
 ;; From http://www.emacswiki.org/emacs/DavidBoon#toc8
-(defvar ar/ediff-bwin-config nil "Window configuration before ediff.")
-(defcustom ar/ediff-bwin-reg ?b
+(defvar ar/ediff-bwin-config nil
+  "Window configuration before ediff.")
+
+(defvar ar/ediff-bwin-reg ?b
   "Register to be set up to hold ar/ediff-bwin-config configuration.")
 
 (defun ar/ediff-bsh ()

(server-start)

;; Customize vertical window divider:
;; Reverse colors for the border to have nicer line.
(set-face-inverse-video-p 'vertical-border nil)
(set-face-background 'vertical-border (face-background 'default))
;; Set symbol for the border.
(set-display-table-slot standard-display-table
                        'vertical-border

      (replace-match (format " %s"
                             (downcase (match-string 0)))
                     t nil))))
(global-set-key (kbd "C-c l") 'ar/split-camel-region)

;; M-. elisp navigation.
(use-package elisp-slime-nav
