Fixed plotting of vehicle trajectory from general GUI

The graphTrajectory function in HomeoGeneralGUI.py is now capable of reading the lights'
positions and intensity from the data file and to  plot them accordingly

Changes to be committed:
	modified:   src/Simulator/HomeoGeneralGUI.py
	modified:   src/Webots/Homeo-experiments/controllers/supervisorTrajectory/supervisorTrajectory.py
Added a new experiment that initializes a simulation for a Genetic Algorithm run

Changes to be committed:
	modified:   src/Simulator/HomeoExperiments.py
Minor changes in the computation of max speed for a motor
Added functions to standard HomeoUnit and HomeoConnection to initialize essential parameters from a GA genome
Modified HomeoUnitQtSimulation to start a GA experiment with given genome
Added a few notes on how to run GA experiments
Minor fixes to the lightSensorTest controller for Webots
Started working on a complete module for GA simulations, including GUI
Added first rudimentary interface to Ga simulations