pgsql-server: Add: < * -Allow savepoints / nested transactions

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

< * -Allow savepoints / nested transactions [transactions] (Alvaro)

* -Allow savepoints / nested transactions (Alvaro)

348a349,353

* Add an option to automatically use savepoints for each statement in a
multi-statement transaction.

When enabled, this would allow errors in multi-statement transactions
to be automatically ignored.

Modified Files:
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pgsql-server/doc:
TODO (r1.1331 -> r1.1332)
(http://developer.postgresql.org/cvsweb.cgi/pgsql-server/doc/TODO.diff?r1=1.1331&amp;r2=1.1332)