Merge pull request #2 from luisibanez/master

Resolved coloring of nodes.
Merge pull request #3 from luisibanez/master

Fixed mapping of labels and colors.
Graph for 10% Confidence
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Graph for 20% Confidence
Graph for 30% Confidence
Graph for 40% Confidence
Changed the graph layout to spring
Working on creating a graph with the accumulated confidence matrices, in order to get the weights for the edges. The goal is to create a graph with different shades of grey.
Success in creating the grey scale for the weights of the edges (Confidence levels)
Expanded draw function into components.

In order to gain fine control over the parameters of the plot.
Including, springs separation, node size.