pgsql: Update: > > o -Add ability to turn off full page writes > o

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

o -Add ability to turn off full page writes
o When off, write CRC to WAL and check file system blocks
on recovery
o Write full pages during file system write and not when
the page is modified in the buffer cache

This allows most full page writes to happen in the background
writer.

Modified Files:
--------------
pgsql/doc:
TODO (r1.1594 -> r1.1595)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1594&r2=1.1595)
pgsql/doc/src/FAQ:
TODO.html (r1.101 -> r1.102)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.101&r2=1.102)