* helm.el: Allow 0.01 for helm-(input)-idle-delay.
* helm-dabbrev.el: Send message when nothing found.
Merge branch 'master' into exp
* emacs-helm.sh: Allow extra args to emacs.
* helm-match-plugin.el (helm-mp-highlight-region): Fix regexp error.
* emacs-helm.sh: Add a minimal help in scratch buffer.
* helm-locate.el (helm-locate-init): shell-quote helm-pattern (thanks Michael).
* helm-elisp.el (helm-lisp-completion-at-point): Improve detection and insertion at point.
* helm-elisp.el (helm-bounds-of-thing-before-point): Fix docstring.
* helm-mode.el (helm-generic-read-file-name): Default should be a directory.
* helm-elisp.el (helm-lisp-completion-at-point): Fix insertion of candidate.
* helm-elisp.el (helm-thing-before-point): New optional arg.
(helm-bounds-of-thing-before-point): DRY, use `helm-thing-before-point'.
* helm-dabbrev.el (helm-dabbrev--collect): Start searching backward before target.
(helm-source-dabbrev): Fix string insertion in action (same behavior as lisp completion).
(helm-dabbrev): Use thing before point.
* helm-elisp.el (helm-insert-completion-at-point): New.
* helm-dabbrev.el: Use it.
* helm-dabbrev.el (helm-dabbrev--collect): Fix again start of search backward.
* helm-mode.el (helm-generic-read-file-name): remove unused let-binded ini-input. (thanks michael ;-)).
* helm-files.el (helm-files-in-all-dired-candidates): Simplify.
* helm-elisp.el (helm-thing-before-point): Fix setting of limits.
* helm-files.el: Reorder some functions, no code change.
* helm-grep.el (helm-do-grep-1): Fix ack-grep running instead of zgrep.