[NEW] : add a send/receive [/span/project/load/working] 0/1, with the same mechanism than [span/load/working] 0/1

Exemple is in the span.init patch
paths management is now integrate in span.

send a path to [/span/paths/add] to add this path to the span database.
If the path you send is a file, it will be add as a file, normal !!
If the path you send is a folder, it will add itself as a folder or it
can add all the files inside this folder.
[/span/paths/add/mode] file/folder
just cosmetic changes
add a javascript to handle files and folder… it's just the beginning… yet not working