+ cMSG:
+ * Interface improvement:
+ - Rename MSG_host_is_avail(h) to MSG_host_is_on(h)
+ jMSG:
+ * Interface improvement:
+ - Rename Host.isAvail() to Host.isOn()
+ SIMIX:
+ * New functions
+ - SIMIX_process_throw: raises an exception in a remote process
+