pgsql: Update FAQ URLs.

Log Message:
-----------
Update FAQ URLs.

Robert Treat

Modified Files:
--------------
    pgsql/doc:
        FAQ_DEV (r1.94 -> r1.95)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/FAQ_DEV.diff?r1=1.94&r2=1.95)
        FAQ_german (r1.19 -> r1.20)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/FAQ_german.diff?r1=1.19&r2=1.20)
    pgsql/doc/src/FAQ:
        FAQ_DEV.html (r1.97 -> r1.98)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_DEV.html.diff?r1=1.97&r2=1.98)
        FAQ_brazilian.html (r1.8 -> r1.9)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_brazilian.html.diff?r1=1.8&r2=1.9)
        FAQ_czech.html (r1.4 -> r1.5)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_czech.html.diff?r1=1.4&r2=1.5)
        FAQ_farsi.html (r1.2 -> r1.3)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_farsi.html.diff?r1=1.2&r2=1.3)
        FAQ_french.html (r1.4 -> r1.5)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_french.html.diff?r1=1.4&r2=1.5)
        FAQ_german.html (r1.20 -> r1.21)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_german.html.diff?r1=1.20&r2=1.21)
        FAQ_polish.html (r1.4 -> r1.5)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_polish.html.diff?r1=1.4&r2=1.5)
        FAQ_russian.html (r1.27 -> r1.28)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/FAQ_russian.html.diff?r1=1.27&r2=1.28)