~/.emacs.d: Use melpa as a package source.

.emacs.d/init.el

      `((".*" ,(concat user-emacs-directory "backups"))))
(require 'package)
(add-to-list 'package-archives
  '("marmalade" .
    "http://marmalade-repo.org/packages/"))
(add-to-list 'package-archives '("marmalade" . "http://marmalade-repo.org/packages/"))
(add-to-list 'package-archives '("melpa" . "http://melpa.milkbox.net/packages/"))
(add-hook 'clojure-mode-hook 'paredit-mode)