NOTE: DBI supports Ruby 1.9, but all of the drivers it uses for the DBDs (notably
mysql and sqlite 2.x) may not. We are working on a solution that will hopefully
render itself for 0.4.3.

* Plenty of performance optimizations thanks to Aquasync. DBI should use considerably less memory now on large result sets.
* Experimental support for ODBC timeouts.
* New methods:
** DBI.last_connection returns the last successful connection made by DBI.connect.
** DatabaseHandle#last_statement is a reader that returns the last statement executed.
** DatabaseHandle#database_name returns the name of the database connected to.