I've finally released the source code of the neural network creator, along with the module with tools written in D.

[Murilo]

I've placed the whole thing in my Github, there is the module 
called neuralnetwork.d, which contains tools for you to create 
neural networks, it has classes and functions. And there is the 
software Neural Network Creator which allows you to create the 
network only by clicking with the mouse.

It is all there for anyone to use as they wish, all written 
purely in D.

Here is the link: https://github.com/MuriloMir/Neural-network

Just to give you guys a spoiler, I'm writing a biology simulator 
in D, it is already very impressive, I will show more later.