0.4 (2006-09-13):
  - Added STP support for Leaky integrate-and-fire neurons
  - Bugfix in Leaky integrate-and-fire neuron
  - Added aspi_init_rand ()

0.3 (2006-06-26):
  - Added some methods to handle neuron indexes in network_ml
  - Added aspi_network_learn method
  - Added some getters for network_ml class
  - Fixed a bug in aspi_leaky when delays where zeros

0.2.1 (2006-03-10):
  - corrected libtool versioning 
  - Bugfix in aspi_leaky_set_max_delay

0.2 (2006-03-08):
  - Added a new constructor for network_ml allowing sparse networks.
  - Added a new constructor for network_ml using poisson law for
    delays.
  - Added binomial and poisson random law.

0.1 (2006-03-02):
  - Some last cleaning.

0.0.99 (2006-02-27):
  - Network _really_ supports delay
  - Python bindings complete

0.0.9 (2006-02-21):
  - Rewritten in C
  - No longer support multithread
  - Python bindings
  - Network_ml is now user-friendlier
  - So no need for Network_3layers and Network_bimodal
  - Network supports delays

0.0.2 (2005-11-10):
  - Network_ml can now handle n layers
  - Network_3layers corresponds to the old Network_ml
  - Added Network_bimodal

0.0.1 (2005-10-12):
  - initial release