place/threads: use _log to store data, threaded comments

place/archetype.gen: new save log immediately flag to save() after logAppend():
- in place/name.c:
define SAVE_LOG_IMMEDIATELY
- in local.h:
define _flag_save_place_log_immediately
define _flag_save_userthreads_immediately

place/text: added x()

world/net/include/lastlog.h

@@ -0,0 +1,15 @@
+#ifndef LASTLOG_H
+#define LASTLOG_H
+
+// _log fields
+#define LOG_SOURCE 0
+#define LOG_SOURCE_OBJ 0
+#define LOG_SOURCE_UNI 1
+#define LOG_MC 1
+#define LOG_DATA 2
+#define LOG_VARS 3
+#define LOG_CHILDREN 4 //only added by place/threads:entries()
+
+#define LOG_WIDTH 4
+
+#endif