Added new method for fast access to neighbourhood of neuron
Added getNeighbourNeuron
some corrections in parameters of calcEuclidNorm
Added method setDensity for class Neuron
Added method setDensity
Given descriptions of some methods

Given description of:
calcEuclidNorm;
calcMeanDistance
calcPoint
8 part of algorithm is completed
Some corrections
Given descriptions of methods:

getId();
getDensity();
getApex()
calcMeanDensity();
Created new class Cluster

Fields: id, meanDensity, apex, neuronsList;
Methods: getId(); getDensity(); getApex(); unite; separate();
calcMeanDensity();
Nothing special
Added method getCluster
List of changes

Added 3 parameters: lambda, c1, c2;
Reloaded method removeConnection
Given descriptions and some corrections

Given description of methods:
keytoConnect
connectionExist