This patch is made out of my attempt to start obex-data-server from
debian without xdg-user-dirs . It does not work as the glib special
directories are nto defined but worst than that :
- it did not tell in the log anything went wrong, 
- it did not close the server when it failed to start it and
sharing_enabled and received_enabled where not in sync with the server
state anymore because of that. applet was trying to create the server
while it was already running leading to socket already in use errors
after two attempts. 
This fixes those issues.


Best regards
Alban