Updates for OS X, iOS, iTunes

I had all the betas already installed (they worked without any problem) but the final release of 10.11.5 my Mac seems to be snappier.

There are so many complaints about iTunes, I had never any problems, neither with iTunes nor with Apple Music although I have collected over 100 GB of music plus musical pieces done by friends and some by myself.
I admit that the UI of iTunes is not the best and most logical but it served my needs and the new release makes no big changes but IMHO is a first step in the right direction.