textsearch-ja - textsearch_groonga: Support aminsert().

Log Message:
-----------
Support aminsert().
Rewrite some of QL-based codes into DB API.
Add groonga.query type to support native QL.
text[] %% text is temporarily removed.

Modified Files:
--------------
    textsearch_groonga:
        textsearch_groonga.c (r1.3 -> r1.4)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/textsearch_groonga.c?r1=1.3&r2=1.4)
        textsearch_groonga.sql.in (r1.3 -> r1.4)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/textsearch_groonga.sql.in?r1=1.3&r2=1.4)
        uninstall_textsearch_groonga.sql (r1.2 -> r1.3)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/uninstall_textsearch_groonga.sql?r1=1.2&r2=1.3)
    textsearch_groonga/expected:
        textsearch_groonga.out (r1.4 -> r1.5)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/expected/textsearch_groonga.out?r1=1.4&r2=1.5)
    textsearch_groonga/sql:
        textsearch_groonga.sql (r1.3 -> r1.4)

(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch_groonga/sql/textsearch_groonga.sql?r1=1.3&r2=1.4)