pgsql: Add: > o Add long file support for binary pg_dump output > >

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

o Add long file support for binary pg_dump output

While Win32 supports 64-bit files, the MinGW API does not,
meaning we have to build an fseeko replacement on top of the
Win32 API, and we have to make sure MinGW handles it.

Modified Files:
--------------
pgsql/doc:
TODO (r1.1714 -> r1.1715)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1714&r2=1.1715)
pgsql/doc/src/FAQ:
TODO.html (r1.221 -> r1.222)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.221&r2=1.222)