getcallstatus support corrected
No segmentation fault on refuse a non-progressing call
No segmentation fault on opening two sflphone(d)

GetEvents (new handling)
GetCallStatus (still 101 to 108) message to send
ConfigSave (not working yet)
the save on the disk is ok
it's the return message and the loading that is not ok
I have to test again server
The client can now quit without crash the server ;p

Correct ConfigTreeSave

configgetall works
configget works
configset not tested yet
getzeroconf not tested yet

Try to reuse the config code, but I was not able to
I create a Conf::Config to replace it...