pgsql: Update RESET ALL items: < all temporary tables, removal of any

Log Message:
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Update RESET ALL items:

< all temporary tables, removal of any NOTIFYs, etc. This could be used
< for connection pooling. We could also change RESET ALL to have this
< functionality.

all temporary tables, removal of any NOTIFYs, cursors, prepared
queries(?), currval()s, etc. This could be used for connection pooling.
We could also change RESET ALL to have this functionality.

Modified Files:
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pgsql/doc:
TODO (r1.1437 -> r1.1438)
(http://developer.postgresql.org/cvsweb.cgi/pgsql/doc/TODO.diff?r1=1.1437&amp;r2=1.1438)