pgsql: Add: > * Speed WAL recovery by allowing more than one page to be

Log Message:
-----------
Add:

> * Speed WAL recovery by allowing more than one page to be prefetched
>
>   This involves having a separate process that can be told which pages
>   the recovery process will need in the near future.
>   http://archives.postgresql.org/pgsql-hackers/2008-02/msg01279.php
>

Modified Files:
--------------
    pgsql/doc:
        TODO (r1.2247 -> r1.2248)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/TODO?r1=1.2247&r2=1.2248)
    pgsql/doc/src/FAQ:
        TODO.html (r1.756 -> r1.757)
        (http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html?r1=1.756&r2=1.757)