textsearch-ja - textsearch-ja: Suppress warnings between signed/unsigned

Log Message:
-----------
Suppress warnings between signed/unsigned chars.

Modified Files:
--------------
    textsearch-ja:
        encoding_eucjp.c (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch-ja/encoding_eucjp.c?r1=1.6&r2=1.7)
        encoding_utf8.c (r1.7 -> r1.8)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch-ja/encoding_utf8.c?r1=1.7&r2=1.8)
        textsearch_ja.c (r1.10 -> r1.11)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch-ja/textsearch_ja.c?r1=1.10&r2=1.11)
        textsearch_ja.h (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch-ja/textsearch_ja.h?r1=1.6&r2=1.7)
    textsearch-ja/doc:
        index-ja.html (r1.6 -> r1.7)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch-ja/doc/index-ja.html?r1=1.6&r2=1.7)
        style.css (r1.4 -> r1.5)
        (http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/textsearch-ja/textsearch-ja/doc/style.css?r1=1.4&r2=1.5)