visualization of adaboost example wrong

[giuseppec]

The concluding adaboost illustration example is:

But the visualized decision boundaries do not match anymore with the ones from iteration m=2 and m=3 which are:

Furthermore, in an older version the point size of the misclassified observations was "bigger" to highlight them visually.
Here is an example of the figures in an earlier version of the chapter (decision boundaries were correct and point size of misclassified obs. was bigger):