v<1.0>, <December 1st, 2013> -- Initial release.
v<1.0.1>, <December 1st, 2013> -- Draw graphs with one vertex.
v<1.0.2>, <December 1st, 2013> -- Fix decomposing algorithm.
v<1.0.3>, <December 3rd, 2013> -- Kamada Kawai layout: put vertex in a random position after some number of iterations.
