libpqxx update

I've just made some updates to libpqxx, my new C++ frontend API to postgresql.  
Anybody who is interested, please get the source code off my homepage:
http://members.ams.chello.nl/j.vermeulen31/

Unpack the tarball (it will create its own directory), cd into it, enter the
Makefile to your liking, and run make.  The example programs (test*.cc) will
show how easy the library is to use.

Recent changes:
- Revamped trigger notification system.- Some SGML documentation.- Enhanced error checking.- Regression test added to
Makefile.

Tom, Bruce, perhaps this is worth incorporating into the postgresql source
tree at some point?


Jeroen