textsearch-ja - textsearch_groonga: Support server version 9.1 and

Log Message:
-----------
Support server version 9.1 and 9.2dev.

Modified Files:
--------------
    textsearch_groonga:
        COPYING (r1.2 -> r1.3)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/COPYING?r1=1.2&r2=1.3)
        groonga_types.c (r1.3 -> r1.4)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/groonga_types.c?r1=1.3&r2=1.4)
        textsearch_groonga.c (r1.12 -> r1.13)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/textsearch_groonga.c?r1=1.12&r2=1.13)
        textsearch_groonga.h (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/textsearch_groonga.h?r1=1.2&r2=1.3)
        textsearch_groonga.sql.c (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/textsearch_groonga.sql.c?r1=1.2&r2=1.3)
    textsearch_groonga/pgut:
        pgut-be.c (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/pgut/pgut-be.c?r1=1.1&r2=1.2)
        pgut-be.h (r1.1 -> r1.2)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/pgut/pgut-be.h?r1=1.1&r2=1.2)