am a44583c1: am 8e4e5549: am d9019dd2: Doc change: Mention ratings in app stats intro, mention proguard in pub checklist, align terminology wrt native platform filtering.

* commit 'a44583c12e81ff676e8e7f57791da6021ddf8ef5':
  Doc change: Mention ratings in app stats intro, mention proguard in pub checklist, align terminology wrt native platform filtering.