pgsql: Text parser rewritten: - supports multibyte encodings

Log Message:
-----------
Text parser rewritten:
        - supports multibyte encodings
        - more strict rules for lexemes
        - flex isn't used
Add:
        - tsquery plainto_tsquery(text)
          Function makes tsquery from plain text.
        - &&, ||, !! operation for tsquery for combining
          tsquery from it's parts:  'foo & bar' || 'asd' => 'foo & bar | asd'

Modified Files:
--------------
    pgsql/contrib/tsearch2:
        Makefile (r1.11 -> r1.12)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/Makefile.diff?r1=1.11&r2=1.12)
        query.c (r1.20 -> r1.21)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/query.c.diff?r1=1.20&r2=1.21)
        query_support.c (r1.1 -> r1.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/query_support.c.diff?r1=1.1&r2=1.2)
        tsearch.sql.in (r1.13 -> r1.14)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/tsearch.sql.in.diff?r1=1.13&r2=1.14)
        wparser_def.c (r1.13 -> r1.14)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wparser_def.c.diff?r1=1.13&r2=1.14)
    pgsql/contrib/tsearch2/expected:
        tsearch2.out (r1.15 -> r1.16)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/expected/tsearch2.out.diff?r1=1.15&r2=1.16)
    pgsql/contrib/tsearch2/sql:
        tsearch2.sql (r1.9 -> r1.10)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/sql/tsearch2.sql.diff?r1=1.9&r2=1.10)
    pgsql/contrib/tsearch2/wordparser:
        Makefile (r1.8 -> r1.9)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wordparser/Makefile.diff?r1=1.8&r2=1.9)
        deflex.c (r1.2 -> r1.3)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wordparser/deflex.c.diff?r1=1.2&r2=1.3)
        deflex.h (r1.1 -> r1.2)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wordparser/deflex.h.diff?r1=1.1&r2=1.2)
        parser.h (r1.4 -> r1.5)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wordparser/parser.h.diff?r1=1.4&r2=1.5)

Added Files:
-----------
    pgsql/contrib/tsearch2:
        ts_locale.c (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/ts_locale.c?rev=1.1&content-type=text/x-cvsweb-markup)
        ts_locale.h (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/ts_locale.h?rev=1.1&content-type=text/x-cvsweb-markup)
    pgsql/contrib/tsearch2/wordparser:
        parser.c (r1.1)

(http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wordparser/parser.c?rev=1.1&content-type=text/x-cvsweb-markup)

Removed Files:
-------------
    pgsql/contrib/tsearch2/wordparser:
        parser.l
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/contrib/tsearch2/wordparser/parser.l)