=== New in version 0.19

 - new multi-file organization: split out the system-dependent parts
   and the tests into separate files. An ASDF system description is
   provided in the file pg.asd. 

 - change to WITH-PG-TRANSACTION: the previous version would abort the
   current transaction upon encountering an error, which made
   debugging difficult. The new version (thanks to Daniel Barlow)
   maintains the transaction open until you have exited the debugger.

 - support for connecting to PostgreSQL using a local socket instead
   of using TCP/IP, when you're on the same host as the backend. To
   enable, use a NIL host argument to PG-CONNECT. This makes it
   possible to connect to the database without enabling TCP/IP
   connections in the backend ("-i" option), and (depending on the
   access configuration parameters specified in pg_hba.conf) possibly
   without supplying a password. This is currently only supported for
   CMUCL and SBCL.
   
 - parser support for the INTERVAL type (you get this by subtracting
   two timestamps). They are coerced by pg-dot-lisp to a number of
   seconds, represented in floating point.

 - new configuration variable *PG-CLIENT-ENCODING*, that supports
   client-side encoding of text data, as per
   <http://www.postgresql.org/docs/7.3/static/multibyte.html>.
   Function PG-CLIENT-ENCODING, and corresponding setf
   function, that allows you to retrieve and modify the current client
   encoding.

 - new configuration variable *PG-DATE-STYLE* that allows you to
   change the style in which date types are printed. Function
   PG-DATE-STYLE that allows you to retrieve (and modify via its SETF
   function) the current backend's date style.

 - CMUCL: loading the file cmucl-install-subsystem.lisp (as a user who
   has write access to the directory where CMUCL is installed) will
   cause this package to be installed as a CMUCL "subsystem", that can
   thereafter be loaded by saying "(require :pg)".

 - SBCL: fix for new sb-bsd-sockets

 - support for a new Common Lisp implementation, Armed Bear Lisp for
   the JVM