* helm-regexp.el (helm-source-moccur): Issue #396 remove reference to no more used helm-m-occur-idle-delay.
Issue #386 Notify prefix arg in mode-line with helm-M-x.
* helm-command.el (helm-M-x--notify-prefix-arg): new.
(helm-M-x): Run a timer to notify prefix-arg.
* helm.el (helm--mode-line-display-prefarg): New internal.
(helm-display-mode-line): allow notifying prefix arg, take one more arg 'force.
Issue #386 Reset helm--mode-line-display-prefarg in helm-M-x.
* helm-command.el (helm-M-x): Reset helm--mode-line-display-prefarg when done. This avoid showing prefix arg in next helm commands runned from M-x.
* helm-mode.el (helm-read-file-name): Fix auto update flag initialization.
* helm.el (helm-match-from-candidates): Issue #397 delq nil candidates if some.
* helm.el (helm-match-from-candidates): Use nconc.
* helm-files.el (helm-dwim-target-directory): Fix with number of windows now I have helm-marked-buffer-name.
(helm-marked-buffer-name): New internal.
* helm-mode.el (helm-read-file-name): Use its keymap in history.
* helm-files.el (helm-find-files-do-action): Add a / at end of directory in helm marked buffer.
Issue #398 Don't allow user to run helm commands outside of context.
* helm.el (with-helm-alive-p): New macro. * helm-files.el: remove autoload cookies in all commands running from helm. * helm-config.el: Update autoloads.