topac/rmega — pull request #5 by yasuoza (2013-08-21 11:40:52+00:00)
Title: Fix an issue that folder.create_folder creates root directory

When calling

```ruby
root_folder = storage.root.folders.find {|folder| folder.name == 'my_folder'}
root_folder.create_folder('my_sub_folder')
```

creates 'my_sub_folder' in the root directory.
This commit fixes the issue.