* helm-command.el (helm-M-x): Improve docstring, no code change.
* helm-mode.el (helm-comp-read): Fix docstring for mode-line arg.
(helm-read-file-name): New arg mode-line.
* helm-command.el (helm-M-x): Add keymap.
* helm-help.el: Add help for helm-M-x.
* helm.el: Log error only when helm-debug is non--nil (#474).
Declare helm-log-eval before using it
* helm-files.el (helm-ff-set-pattern): Be sure pattern is a string (#476).
Merge pull request #477 from russell/helm-log-eval

Declare helm-log-eval before using it