april, 10 2008

changelogs:
- deletion of the untimely printing in the console when using 3d visualization
- correct the bug when adding an additional control to a model
- allows one to add labels to the state space and control space, such that when using the GUI, the user can see which variable corresponds to which dimension (for exemple, in the language model, the GUI prints "lower sigmaA" instead of "lower dim 0" and prints "lower control c" instead of "lower control dim 0").