Ping Pong Test 16 peers

Change-Id: I4751ebc4ee2d3d36e17d43c4eefe8db7fc1e0074
Reviewed-on: http://naan.mimuw.edu.pl:8001/82
Tested-by: Nebulostore Nebulostore <nebulostore@gmail.com>
Reviewed-by: Szymon Matejczyk <smatejczyk@gmail.com>