Enable AutoComplete.el for lisp-mode

I don’t know exactly why, but AutoComplete.el for Emacs doesn’t work by default for standard lisp-mode, so there is my tweak:

1) Copied the scheme-mode from .emacs.d/ac-dict to the same dir but renaming it lisp-mode
2) I’ve put the following into my .emacs:

(add-to-list 'load-path "~/.emacs.d")
(require 'auto-complete-config)
(add-to-list 'ac-dictionary-directories "~/.emacs.d/ac-dict")
(add-to-list 'ac-modes 'lisp-mode)
(ac-config-default)

The magic is provided by the line

(add-to-list 'ac-modes 'lisp-mode)

Hope this help 🙂