Main authors:
  Federico Di Gregorio <fog@debian.org>
  Daniele Varrazzo <daniele.varrazzo@gmail.com>

For the win32 port:
  Jason Erickson <jerickso@indian.com>

Additional Help:
  
  Peter Fein contributed a logging connection/cursor class that even if it
  was not used directly heavily influenced the implementation currently in
  psycopg2.extras.

  Jan Urbański (re)started the work on asynchronous queries and contributed
  both on that and on other parts of psycopg2.