+Document the fact that gras processes display the backtrace on sigusr and sigint
+Document XBT_LOG_EXTERNAL_DEFAULT_CATEGORY
+Document host module
+
+/* FIXME: better place? */
+int vasprintf (char **ptr, const char *fmt, va_list ap);
+char *bprintf(const char*fmt, ...) _XBT_GNUC_PRINTF(1,2);
+
+Module renamings:
+ - rename SWAG to RING?
+ - Rename cursor to iterator
+
+log.h still contains @name which break doxygen:
+xbt/log.h:/** \name DEBUG
+xbt/log.h:/** \name VERB
+xbt/log.h:/** \name INFO
+xbt/log.h:/** \name WARN
+xbt/log.h:/** \name ERROR
+xbt/log.h:/** \name CRITICAL
+
+gras_socket_close should be blocking until all the data sent have been
+received by the other side (implemented with an ACK mechanism).