A small bug in the Virtual List demo

Hi,

I open an example Virtual list on the page http://framework7.io/docs/virtual-list.html scroll to end and see

%D0%B8%D0%B7%D0%BE%D0%B1%D1%80%D0%B0%D0%B6%D0%B5%D0%BD%D0%B8%D0%B5

It is seen only in iOS theme.

That is the issue in current demo, virtual list item height in iOS theme should be set to 63 rather that to 64 like in demo