UI simplification for Learners

[borondics]

It seems that each learner from the Model group has a text entry for naming that particular learner for further inspection.

To simplify the GUI and make it more transparent too, I think it would make more sense to simply use the widget name instead of the Name property from inside the widget GUI.

Arguments for the change:

• As the Name doesn't correspond to the name of the widget the user would need to actually open it to see the name
• One widget makes one learner and the widget names are auto incremented with (1) (2), etc, while the Name properties are not, so adding two Tree widgets creates Tree and Tree (1) on the canvas but when connected to Test and Score for example the user gets two times the "Tree" model by default. If the widget name was used instead of the Name property, this would be automatically solved and if someone wants to make it pretty by naming the widgets they can still do it.

@irgolic, do you think it is a reasonable suggestion? Of course, there might be some very good reason this is done the way it is, which I might not be familiar with.