pgsql: Update wording: < Currently, ALTER USER and ALTER DATABASE

Log Message:
-----------
Update wording:

<   Currently, ALTER USER and ALTER DATABASE support per-user and
>   Currently ALTER USER and ALTER DATABASE support per-user and
<       Currently, subtracting one date from another that crosses a
>       Currently subtracting one date from another that crosses a
<   Currently, SQL-language functions can only refer to parameters via $1, etc
>   Currently SQL-language functions can only refer to dollar parameters,
>   e.g. $1
<   Currently, queries prepared via the libpq API are planned on first
>   Currently queries prepared via the libpq API are planned on first
<       Currently, SET <tab> causes a database lookup to check all
>       Currently SET <tab> causes a database lookup to check all
<       Currently, all statement results are transferred to the libpq
>       Currently all statement results are transferred to the libpq

Modified Files:
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    pgsql/doc:
        TODO (r1.2098 -> r1.2099)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.2098&r2=1.2099)
    pgsql/doc/src/FAQ:
        TODO.html (r1.599 -> r1.600)
        (http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.599&r2=1.600)