* Bug fix: Failures are now better supported thanks to Derrick's tests
(there was many failure situations I hadn't thought of and that weren't
correctly handled). [AL]
+ * New function: MSG_host_is_avail indicates you whether a given m_host_t
+ is up or down.
GRAS:
* New! a real RPC mecanism, as it ought to be since too long. [MQ]