[SPAM:1.4] Free desktop default directories

[Charlie Brej <nautilus brej org>]

I would like to add somewhere an option to choose the free-desktop default 
directory locations (Desktop/Videos/Downloads...). The values of these are kept 
in ~/.config/user-dirs.dirs . I'm not sure where precisely would be a reasonable 
place to put these options.

One method would be to have a preferences page allowing a user to set any of the 
directories (currently:DESKTOP, DOWNLOAD, TEMPLATES, PUBLICSHARE, DOCUMENTS, 
MUSIC, PICTURES and VIDEOS).

Another way would be to have a menu option of "make this my music directory".

Yet another would be to put it somewhere else completely.