* helm-eshell.el (helm-source-esh): Display same thing as what will be inserted (#438).
* helm-mode.el (helm--completion-in-region): Quote string when inserting (#440)
* helm-eshell.el (helm-source-esh): ignore for persistent-action (#438).
* helm-grep.el (helm-grep-filter-one-by-one): Bind helm-grep-default-directory-fn (fix root is not provided in ff).