fog/fog — pull request #3175 by Mook-as (2014-09-23 17:24:36+00:00)
Title: Local storage: Always try to create directories, handle already existing

This reduces the chances of races where two client try to upload the same file / two files with the same directory.

Not sure if this is the right way (or if the `.directory?` check should be left in); please advise.