v1.0.3 Change Logs

• Removed ei_balance. It will automatically balanced such that all weights add up to 1.
• Added Multi Layer Perceptron (MLP) model.
• Removed allow_negative
• Renamed use_dale as positivity_constraints, support list definition.
• Renamed new_synapses as sparsity_constraints.
• Remove auto E/I balance. Potentially move it to a separate function.
• Removed spectral_radius, this will be redesigned in future versions.