Improve support of multibyte encoding:

- tsvector_(in|out)
- tsquery_(in|out)
- to_tsvector
- to_tsquery, plainto_tsquery
- 'simple' dictionary

contrib/tsearch2/dict_syn.c

@@ -8,6 +8,7 @@
 
 #include "dict.h"
 #include "common.h"
+#include "ts_locale.h"
 
 #define SYNBUFLEN	4096
 typedef struct