[w3m-dev 02859]

* config.h.dist (DEF_MIGEMO_COMMAND): added
* configure (DEF_MIGEMO_COMMAND): added
* fm.h (migemo_command): initial value is DEF_MIGEMO_COMMAND
* main.c (migemostr): remove here, move search.c
* main.c (srchcore): dont migemostr() here
* proto.h (init_migemo): added
* rc.c (sync_with_option): init_migemo()
* search.c (init_migemo): added
* search.c (open_migemo): added
* search.c (migemostr): communicate background migemo
* search.c (forwardSearch): if regexCompile for migemostr failed,
		try original str
* search.c (backwardSearch): ditto
From: Fumitoshi UKAI  <ukai@debian.or.jp>

rc.c

@@ -1,4 +1,4 @@
-/* $Id: rc.c,v 1.30 2002/01/16 15:37:07 ukai Exp $ */
+/* $Id: rc.c,v 1.31 2002/01/16 16:49:54 ukai Exp $ */
 /* 
  * Initialization file etc.
  */
@@ -1124,6 +1124,9 @@ sync_with_option(void)
 #ifdef USE_EXTERNAL_URI_LOADER
     initURIMethods();
 #endif
+#ifdef USE_MIGEMO
+    init_migemo();
+#endif
 
     if (AcceptLang == NULL || *AcceptLang == '\0') {
 #if LANG == JA