pgsql: Remove references to pgsql-ports and pgsql-patches mailing lists

Log Message:
-----------
Remove references to pgsql-ports and pgsql-patches mailing lists from
various documentation, since those lists are now dead/deprecated.
Point to pgsql-bugs and/or pgsql-hackers as appropriate.

Tags:
----
REL8_2_STABLE

Modified Files:
--------------
    pgsql:
        configure (r1.523.2.22 -> r1.523.2.23)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/configure?r1=1.523.2.22&r2=1.523.2.23)
        configure.in (r1.490.2.22 -> r1.490.2.23)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/configure.in?r1=1.490.2.22&r2=1.490.2.23)
    pgsql/doc:
        bug.template (r1.40.2.11 -> r1.40.2.12)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/bug.template?r1=1.40.2.11&r2=1.40.2.12)
    pgsql/doc/src/sgml:
        installation.sgml (r1.267.2.2 -> r1.267.2.3)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/installation.sgml?r1=1.267.2.2&r2=1.267.2.3)
        problems.sgml (r2.27 -> r2.27.2.1)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/sgml/problems.sgml?r1=2.27&r2=2.27.2.1)