* helm-files.el (helm-files-save-file-name-history): Don't run file-exists-p on nil (#446)
* helm-eshell.el: Fix insertion with input starting with "./" (#447).
* helm-mode.el (helm--completion-in-region): Run the sort function after the default transformer.
* helm-mode.el (helm--completing-read-default): Disable `minibuffer-completion-table' and `minibuffer-completion-predicate' (#448)