pgsql: Add: > > o Add auto-expanded mode so expanded output is used

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

o Add auto-expanded mode so expanded output is used if the row
length is wider than the screen width.

Consider using auto-expanded mode for backslash commands like \df+.

Modified Files:
--------------
pgsql/doc:
TODO (r1.1692 -> r1.1693)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1692&r2=1.1693)
pgsql/doc/src/FAQ:
TODO.html (r1.199 -> r1.200)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/src/FAQ/TODO.html.diff?r1=1.199&r2=1.200)