gistfile1.el

(when (featurep 'helm-autoloads)
  (global-set-key "\C-xb" 'helm-for-files)
  (setq helm-idle-delay 0.1
        helm-input-idle-delay 0.1)
  (setq helm-for-files-preferred-list
        '(helm-source-buffers-list
          helm-source-files-in-current-dir
          helm-source-recentf
          helm-source-bookmarks
          helm-source-buffer-not-found))
  (when (featurep 'helm-git-files-autoloads)
    (add-to-list 'helm-for-files-preferred-list 'helm-git-files:modified-source t)
    (add-to-list 'helm-for-files-preferred-list 'helm-git-files:untracked-source t)
    (add-to-list 'helm-for-files-preferred-list 'helm-git-files:all-source t))
  (eval-after-load 'helm
    '(progn
       (define-key helm-map (kbd "C-h") 'delete-backward-char)
       )))