fix local demo to allow things to move in both directions
start adding input to demo
make subclassing from netobject subclasses easier
transmit serverTime to client
make client input work in demo, flesh out serverTime bits
Keep track of what inputs were sent and when they get acked. Send input IDs to server so it can handle duped inputs. Fix netconn to not call onpacket when there's no data in a packet.
Re-send inputs until the server acks them, drop already-processed inputs on the server side.
Don't send netID for every input in a packet, just send it once at the beginning of the packet.