Added method setId(int data)
Given description of method setId(int data)
Some correction with method classify()
List of changes

Added 12th part of learning algorithm;
Given description of method path;
Some corrections;
Revert "List of changes"

This reverts commit c04812db4860a5cd02a4fd76a31bb34294860c7e.
Added method path(Neuron* top, Cluster* bag)
List of changes

Given description of method path;
Added 12th part of learning algorithm;
Some corrections