updated mobile-about statistics docs
updated mobile-about statistics docs

- to reflect, that page views returns platforms instead if pagetype counts
- to reflect there is now a system variable that distinquishes between web versus native apps

modolabs/Kurogo-Mobile-Web,modolabs/Kurogo-Mobile-Web,wesley1001/Kurogo-Mobile-Web,wesley1001/Kurogo-Mobile-Web,modolabs/Kurogo-Mobile-Web,wesley1001/Kurogo-Mobile-Web