When a user wants to save a file it is possible that the target directory does not exist yet,
and the user only finds out about this when he is already in the FileBrowser. A button for
creating new dirs would be helpful.
Also a right-click with the mouse on a file or folder could offer a popup menu that allows
the user to select options such as open, delete and properties, where 'properties' would
show some general information about the file, such as the full path, size in bytes, creation
date and such.