Rewrite obexftpdaemon, preapre for new way of doing obexftp.

The idea goes as follow:

The KDED will keep track only of sessions the rest will be done in the
slave, for example this is how listDir will look like:

-KIO asks KDED for a session
-KDED returns an already existing one, or creates a new one
-KIO then uses that sessionPath to call listDir

All KDED operations will be Async, all KIO Sync.

When a kio-slave needs a sessionm, will ask the KDED, in the case where