before removing code that attempted to handle for multiple 1024 buffers (unfinished attempt, but saving in case i want it back later)
large buffers cause disconnects on visitor
(chunking working, though arrives at different times, which is
problematic)
multiple sessions idea -- because if one device is backgrounded and messages are sent to it then disconnects happen
woot -- multiple sessions fixed some problems
before reverting back to sendData
send data from peer to teacher