on slack with @latsabben we found out that pharo-launcher ppa is not up-to-date

latest ubuntu relase is Wily (Oct 22), but in the ppa there's only trusty from June, which is two releases ago.

I don't think that this is good for newcomers.

And if you encounter a problem with installation, change your package distribution

(��System Settings -> System -> Software & Updates -> Other Software -->> then edit the distrubution; this could perhaps be mentioned also in the install instructions )

Peter