Removing some trail characters at event description

 * They are sometimes present after a \r\n\n
Removed development tip comment
Error message only when initialization hadn't been done

In a multithread environment, sogo_backend_init is registering the thread
only for the first one that calls this function, then the others threads
(even if they call sogo_backend_init) won't be registered because
moduleInitialized was YES.

We just want to ensure sogo_backend_init is called at least once (per process,
not per thread).
increase log level of debug message
Scripts/openchange_user_cleanup: Don't hardcode samba private dir, use samba LoadParm()

Signed-off-by: Kamen Mazdrashki <kmazdrashki@zentyal.com>
Fix mysql cleanup log message