* helm-buffers.el (helm-highlight-buffers): Reset max length of buffers created by persistent action.
* helm-buffers.el (helm-highlight-buffers): Set length of mode in init.
(helm-source-buffers-list): Do it.
* helm-files.el (helm-find-files-persistent-action): Set default-directory in image-dired buffers.
* helm-utils.el (helm-quit-and-find-file): Use local value of default-directory for non files buffers.
* helm-files.el (helm-findutils-skip-boring-files): Renamed from helm-findutils-ignore-boring-files.
(helm-findutils-transformer): Don't handle skipped files here.
(helm-source-findutils): but here in filtered-candidate-transformer.