* Neuron and Synapse replace RateNeuron, SpikeNeuron, RateSynapse, SpikeSynapse in the main interface (kept for backward compatibility).
* Default PyNN neural models are now available (Izhikevich, IF_curr_exp, IF_cond_exp, IF_curr_alpha, IF_cond_alpha, HH_cond_exp, EIF_cond_alpha_isfa_ista, EIF_cond_exp_isfa_ista).
* Bug fixes for delays and spike propagation.
* Connectivity matrices (CSR) are more efficient.
* Several PyNN examples are added to the examples/ folder.