* helm-aliases.el: Add helm-org-headlines alias.
Fix expansion of tilde in tramp names (#753) (#747).

* helm-files.el (helm-ff-set-pattern): Add a special rule for tramp names with tilde.
* helm-files.el (helm-browse-project-find-files): Fix long lines.
Improve helm-walk-directory directory checking.

* helm-utils.el (helm-walk-directory): Add comments,
make checking of directory a little faster.
Update embeded documentation.

* helm-help.el: Update string for helm-find-files.

* helm-files.el: Update url's in comments.