Feature: Send CDR status immediately after answer.
Feature: Can disable periodic status updates but still send one on answer.
Bugfix: CDR status messages are sent for inbound call leg too.
Bugfix: extraneous answer events must not cause a status interval timer restart.


git-svn-id: http://yate.null.ro/svn/yate/trunk@5377 acf43c95-373e-0410-b603-e72c3f656dc1