[Users] NEW FEATURES: t_replay() enhancements

Hi everybody, following several discussion threads from some time ago, I added a support for controlling the behaviour of t_relay() functions. This addresses: 1) to ability to stop t_relay() from automatically sending the 100 trying provisional reply before relaying the request. This is useful in scenarios where you already send a stateless 100 trying from the script. 2) ability to do serial forking in failover scenarios - as original t_relay() automatically sends a negative reply in case of a failure (unresolvable URI, TCP connect refused, etc), it was impossible to continue with the next destination. Now, the auto-reply can be disabled. backward compatibility is kept. For more details (how to do it, options, etc), please see the online docs: http://www.openser.org/docs/modules/1.2.x/tm.html#AEN340 regards, bogdan